| Derek Abriola | P | Indy | | 2004-2008 | Central Florida |
| Bob Adams | 1B-C | MLB | 1977-1977 | 1976-1978 | UCLA |
| Brian Albert | P | NCAA | | 2016-2019 | Indiana Pennsylvania |
| Dean Altavilla | C | NCAA | | 2003-2004 | Radford, Garrett College |
| Jack Anderson | C-IF | NCAA | | 2019-2020 | Northwestern |
| Jeff Archer | P | NCAA | | 2002-2004 | Kentucky |
| JD Armstrong | UT | --- | | | High Point |
| Chris Ashby | 1B | AAA | | 1993-2008 | Florida SW |
| Rick Austin | P | A+ | | 2007-2009 | Seton Hill University |
| Thomas Baginski | P | A+ | | 1996-1999 | George Washington |
| Zack Bahm | P | NCAA | | 2015-2018 | Columbia |
| Denny Bair | P | A+ | | 1993-2003 | Louisiana-Monroe, Penn State |
| Mark Baldwin | P | MLB | 1887-1893 | 1887-1893 | --- |
| Cam Balego | IF | A+ | | 2015-2019 | Mercyhurst, Mercyhurst North East |
| Joe Banach | P | A | | 1980-1981 | --- |
| Frank Barlow | 3B | --- | | | --- |
| Matt Barnes | P | Indy | | 2009-2011 | College of Wooster |
| Devan Barnett | OF | NCAA | | 2021-2021 | Va. Commonwealth |
| Jeff Barns | SS | AAA | | 1985-1994 | South Carolina |
| Tony Bartirome | 1B | MLB | 1952-1952 | 1952-1952 | --- |
| Bill Bayne | P | MLB | 1919-1930 | 1919-1930 | --- |
| Glenn Beckert | 2B | MLB | 1965-1975 | 1965-1975 | Allegheny College |
| Will Bednar | P | NCAA | | 2020-2021 | Mississippi State |
| Alex Bell | C | NCAA | | 2013-2016 | St. Bonaventure, Slippery Rock Pennsylvania |
| Buddy Bell | 3B | MLB | 1972-1989 | 1972-1989 | Miami, Xavier |
| Mike Berger | OF | AAA | | 1980-1993 | Pittsburgh |
| Nick Berger | OF | NCAA | | 2010-2010 | Duquesne |
| Tun Berger | SS | MLB | 1890-1892 | 1890-1892 | --- |
| David Bergstrom | IF | NCAA | | 2008-2008 | Bucknell |
| Nick Bernick | IF | NCAA | | 2015-2018 | Niagara |
| Ronnie Bernick | IF | NCAA | | 2011-2014 | Canisius College |
| Jerry Berteotti | C | A- | | 1991-1994 | Pittsburgh |
| Joe Blackburn | C | A- | | 2004-2008 | Penn State |
| Bill Blair | P | MLB | 1888-1888 | 1888-1888 | --- |
| Mark Bly | P | NCAA | | 2002-2003 | Michigan State |
| Ronnie Boggs | C-OF | Indy | | 1998-1999 | --- |
| Lute Boone | 2B-SS | MLB | 1913-1918 | 1913-1918 | --- |
| Ryan Bordenick | C | A | | 1997-2003 | South Carolina |
| Torre Bowen | SS | --- | | | Coastal Carolina |
| Jackson Boyd | OF | NCAA | | 2010-2010 | Duquesne, Seton Hill University |
| Mark Breitenbach | P | A | | 1977-1978 | --- |
| Grant Briggs | C-OF | MLB | 1890-1895 | 1890-1895 | --- |
| Scott Bronowicz | C | A+ | | 1997-2001 | Maryland |
| David Brooks | COACH | --- | | | West Virginia, South Carolina |
| Grant Brown | OF | NCAA | | 2013-2013 | George Washington |
| Greg Brown | SS | --- | | | Indian River CC, Florida Atlantic |
| Paul Brownlee | SS | Rk | | 1977-1978 | Fairmont State College |
| Justin Brozick | 1B | NCAA | | 2011-2014 | St. Bonaventure |
| Richard Bubash | P | --- | | | CC of Allegheny County |
| David Bush | P | MLB | 2004-2013 | 1999-2013 | Wake Forest |
| Mike Butia | OF | A+ | | 2002-2008 | James Madison |
| Nate Buttenfield | P | Indy | | 2000-2008 | Indiana Pennsylvania |
| Jack Calhoun | 3B | MLB | 1902-1902 | 1902-1902 | --- |
| Billy Campbell | P | MLB | 1905-1909 | 1905-1909 | --- |
| Scoops Carey | 1B | MLB | 1895-1903 | 1895-1903 | West Virginia |
| Bobby Cargo | SS | MLB | 1892-1892 | 1892-1892 | --- |
| Zack Carlino | IF-P | Indy | | 2014-2014 | Mount Union College |
| Patrick Carlson | P | --- | | | Canisius College |
| Gary Carnegie | 3B-OF | --- | | | --- |
| Chris Carrara | IF | A | | 2004-2012 | Winthrop |
| Andrew Casey | --- | --- | | | Dayton |
| Dominic Castello | C | NCAA | | 2016-2019 | West Virginia Wesleyan College |
| Dom Cepullio | OF | NCAA | | 2019-2019 | James Madison |
| Evan Cheng | IF | NCAA | | 2017-2019 | Youngstown State, Missouri Southern State University |
| Luke Cheng | IF | NCAA | | 2021-2021 | Illinois State |
| Scott Chisholm | P | NCAA | | 2003-2006 | Duquesne |
| Brian Chrisman | P | NCAA | | 2004-2008 | Marshall, Pittsburgh |
| Willie Clark | 1B | MLB | 1895-1899 | 1895-1899 | --- |
| Brant Colamarino | 1B | AAA | | 2000-2007 | Pittsburgh |
| Tom Colcombe | P | --- | | | Pittsburgh |
| Bob Collins | C | MLB | 1940-1944 | 1940-1944 | --- |
| Carmen Congelio | 3B | NCAA | | 2011-2013 | Niagara |
| Jason Conti | RF-CF | MLB | 2000-2004 | 1996-2006 | Pittsburgh |
| Chris Cooper | P | AAA | | 2000-2009 | New Mexico, Delaware Technical & CC |
| Jedd Cordisco | OF | NCAA | | 2006-2008 | College of Charleston |
| Logan Corrigan | P-1B | NCAA | | 2014-2018 | James Madison, Frostburg State |
| Connor Coward | P | A | | 2015-2019 | Virginia Tech |
| Justin Craig | P | NCAA | | 1992-1993 | Penn State |
| Ryan Creps | 2B | NCAA | | 2016-2019 | Canisius College, Limestone College |
| Matt Crump | C | NCAA | | 2011-2011 | UNC-Greensboro |
| John Csefalvay | OF-1B | AA | | 1979-1984 | --- |
| John Cuda | P | Rk | | 1992-1992 | --- |
| Jack Cummings | C | MLB | 1926-1929 | 1926-1929 | --- |
| Louie Curcio | SS | Indy | | 2005-2010 | Seminole Florida, Lancaster Bible |
| Justin D'Alessandro | P | A- | | 2010-2015 | Catholic America |
| David Dale | P | --- | | | --- |
| John Daley | SS | MLB | 1912-1912 | 1912-1912 | Fordham |
| Matt Dalton | P | A | | 2001-2004 | Virginia Tech |
| Justin Dattilo | C | NCAA | | 2014-2017 | Maryland-Eastern Shore, North Carolina at Pembroke |
| Todd Davidson | OF | A- | | 1983-1983 | Gulf Coast CC |
| Dan DeBattista | 3B | A+ | | 1977-1977 | Allegheny College |
| Anthony DeFabio | C | NCAA | | 2009-2012 | Duquesne, Pittsburgh |
| Bobby Del Greco | OF | MLB | 1952-1965 | 1952-1965 | --- |
| Domenic DeRenzo | C | Indy | | 2016-2019 | Oklahoma, Mercyhurst |
| Matt Desantis | C | NCAA | | 2004-2004 | Pittsburgh, Keystone College |
| Jim Devine | P-OF | NCAA | | 2009-2013 | Duquesne, Temple, Pittsburgh |
| Jason DiAngelo | P | A+ | | 2003-2007 | West Virginia |
| Jon Dijamco | SS-2B | NCAA | | 2006-2006 | Saint Joseph's |
| Bill Doak | P | MLB | 1912-1929 | 1912-1929 | --- |
| Adam Dobies | P | NCAA | | 2004-2008 | Marshall |
| Andrew Dobies | P | AAA | | 2002-2012 | Virginia |
| Nick Dolan | IF | --- | | | Ohio |
| Brandon Donovan | P | NCAA | | 2017-2020 | Radford |
| Brennan Dorsett | P | NCAA | | 2011-2012 | Charleston Southern, Louisburg College |
| Ryan Douglass | P | AA | | 1997-2005 | --- |
| David Duffett | IF | NCAA | | 2009-2012 | Bucknell |
| Dom Duggan | OF | A+ | | 2005-2010 | Coastal Carolina, John Carroll |
| Mike Dukovich | P | NCAA | | 2003-2007 | Harvard |
| Ryan Dukovich | 1B` | NCAA | | 2004-2006 | Cleveland State |
| Devin Dunn | P | NCAA | | 2018-2020 | Va. Commonwealth |
| Dave Duplessis | 1B-DH | A+ | | 1991-1994 | Los Medanos College, St. Mary's (CA) |
| Shane Eckels | IF | NCAA | | 2007-2009 | Niagara |
| Clayton Elliott | SS | AA | | 1977-1980 | Liberty |
| Ryan Ellis | 2B | A- | | 2000-2004 | Point Park College |
| Leo Elter | SS | --- | | | --- |
| Brendan Enick | 3B | NCAA | | 2003-2006 | Wake Forest |
| Wilma Evans | OF | --- | | | --- |
| Ryan Fairbrother | OF | NCAA | | 2009-2010 | Pittsburgh |
| Dominic Fazio | C | NCAA | | 2013-2018 | High Point, Rutgers-Newark |
| Steven Fedoris | P | --- | | | --- |
| Jason Fennell | 1B-C | A+ | | 1996-2002 | --- |
| Patrick Ferguson | IF | NCAA | | 2017-2021 | Kent State, Gardner-Webb |
| Thomas Fettig | 3B | A+ | | 1981-1983 | Pensacola State College |
| Nate Fichtner | IF | --- | | | Memphis |
| Mike Finocchi | P | AA | | 2005-2009 | Louisburg College |
| Red Fisher | OF | MLB | 1910-1910 | 1910-1910 | --- |
| Ryan Flanagan | P | Rk | | 1999-2000 | Gulf Coast CC |
| Jason Foreman | P | Indy | | 2002-2002 | California Pennsylvania |
| Brian Frey | C | NCAA | | 2000-2003 | Duquesne |
| Eli Friedman | P | NCAA | | 2002-2005 | Brown, Pittsburgh |
| Ben Froelich | C | MLB | 1909-1909 | 1909-1909 | --- |
| Greg Fryman | P | NCAA | | 2004-2007 | Virginia Tech |
| Bill Fulton | P | MLB | 1987-1987 | 1983-1989 | Pensacola State College |
| Ken Fulton | C | --- | | | Duquesne |
| Andrew Funovits | P | NCAA | | 2019-2021 | Bucknell |
| John Gage | C-1B | --- | | | Wheeling Jesuit University |
| Jimmy Gallagher | OF | AAA | | 2005-2013 | Duke |
| John Gallagher | 2B | --- | | | Georgetown |
| Timothy Ganch | 1B | A | | 1977-1979 | Point Park College |
| Jim Gardner | P-3B | MLB | 1895-1902 | 1895-1902 | --- |
| Ryan Garko | 1B | MLB | 2005-2010 | 2000-2012 | Stanford |
| Ty Garner | IF | NCAA | | 1999-2002 | Texas A&M |
| Sean Gaughan | P | Indy | | 2013-2013 | Point Park College |
| Brian Geizheiser | P | --- | | | Penn State |
| Gene Gentile | OF | AAA | | 1977-1987 | --- |
| Chris George | P | MLB | 1991-1991 | 1988-1994 | Kent State |
| Lefty George | P | MLB | 1911-1918 | 1911-1918 | --- |
| Phillip George | P | AA | | 1983-1987 | --- |
| Gus Getz | 3B | MLB | 1909-1918 | 1909-1918 | --- |
| Tim Giel | P | A- | | 2010-2015 | Columbia |
| Mike Gielarowski | P | NCAA | | 2006-2006 | Marshall |
| Sam Gillen | SS | MLB | 1893-1897 | 1893-1897 | --- |
| Cameron Goble | P | --- | | | Va. Commonwealth |
| Andy Goff | 2B | A+ | | 2005-2013 | Wake Forest |
| Pierre Gomez | SS | A+ | | 1990-1990 | Norfolk State |
| John Goray | OF | NCAA | | 2008-2009 | Maryland-Eastern Shore |
| Howie Gorman | OF | MLB | 1937-1938 | 1937-1938 | --- |
| Marc Grande | P | A | | 1992-1994 | Florida Intl |
| Turner Grau | OF | NCAA | | 2020-2021 | Youngstown State |
| Elmer Gray | SCOUT | --- | | | --- |
| Jim Gray | IF | MLB | 1884-1893 | 1884-1893 | --- |
| Gary Green | SS | MLB | 1986-1992 | 1981-1995 | Oklahoma State |
| Jack Greenberg | 1B-3B | NCAA | | 2007-2010 | Penn State, Rhode Island |
| Ryan Gridley | IF | A+ | | 2015-2019 | Mississippi State |
| Joe Groetsch | P-SS | --- | | | --- |
| Clay Groff | C | Indy | | 2016-2017 | Allegheny College |
| Howdy Groskloss | 2B | MLB | 1930-1932 | 1930-1932 | Amherst College |
| Carter Grote | IF | NCAA | | 2014-2017 | Furman |
| Steven Gruver | P | A+ | | 2009-2014 | Tennessee |
| Elmer Guckert | UMP | --- | | | --- |
| Brady Gulakowski | C-1B | NCAA | | 2018-2021 | NC State, Polk State, Liberty |
| Ad Gumbert | P | MLB | 1888-1896 | 1888-1896 | --- |
| Billy Gumbert | P | MLB | 1890-1893 | 1890-1893 | --- |
| Joe Gunn | OF | NCAA | | 2017-2020 | Ball State, St. Johns River CC, Penn State |
| Ross Gusky | P | Indy | | 2011-2012 | Valdosta State, Tallahassee CC |
| Vance Hall | P | A- | | 2003-2004 | --- |
| Bill Hallman | IF | MLB | 1888-1903 | 1888-1903 | --- |
| Chris Happ | IF | NCAA | | 2007-2010 | Duquesne |
| Ian Happ | OF | MLB | 2017-2020 | 2013-2020 | Cincinnati |
| Chris Harner | P | NCAA | | 2008-2010 | Pittsburgh |
| Frank Harris | 1B | MLB | 1884-1884 | 1884-1884 | --- |
| Michael Harris | SS | AAA | | 1980-1986 | --- |
| Dickie Hart | 2B | A- | | 1996-1999 | Florida Atlantic |
| Darren Hartman | P | Indy | | 1994-1997 | Portland |
| Ed Hartman | SS | AA | | 1986-1989 | Indiana Pennsylvania |
| Ben Hartz | P | NCAA | | 2013-2016 | University at Buffalo |
| Tyler Haught | P | NCAA | | 2006-2007 | Navy |
| Dillon Haviland | P | Indy | | 2011-2015 | Duke |
| Andrew Heck | P | Indy | | 2008-2016 | Duquesne, Oklahoma State |
| Josh Heddinger | P | A | | 2012-2017 | Georgia Tech |
| Ian Heisel | P | A+ | | 2005-2008 | California Pennsylvania |
| Austin Hendrick | OF | --- | | | --- |
| Lou Henry | 2B | --- | | | Troy |
| Brad Hensler | C | A | | 2001-2002 | Allegheny College |
| Bill Hershman | P | A+ | | 1986-1989 | Clarion Pennsylvania |
| Etienne Hightower | OF | NCAA | | 1996-1997 | Northwest Florida State College, South Carolina |
| Vee Hightower | OF | AA | | 1991-1997 | Vanderbilt |
| John Hinton | 3B | MLB | 1901-1901 | 1901-1901 | --- |
| Brett Holland | OF | NCAA | | 2006-2009 | Monmouth |
| Christian Holland | OF | NCAA | | 2014-2016 | Monmouth |
| Richard Holloway | P | AA | | 1979-1981 | Gulf Coast CC |
| Tag Horner | P | A+ | | 2005-2008 | Oklahoma City |
| Ed Householder | OF | MLB | 1903-1903 | 1903-1903 | --- |
| Art Howe | 3B-2B | MLB | 1974-1985 | 1974-1985 | Wyoming |
| Matt Howe | 3B | AA | | 1996-2005 | Texas Christian |
| Mark Hredzak | OF | --- | | | Kentucky |
| Josh Hungerman | P | A+ | | 2006-2012 | Cleveland State |
| Mike Hurey | OF | NCAA | | 2000-2002 | Penn State |
| Dan Hussar | P | Indy | | 1997-1998 | Duquesne |
| Ed Hutchinson | 2B | MLB | 1890-1890 | 1890-1890 | --- |
| Jim Hyland | SS-3B | NCAA | | 2004-2007 | Cornell |
| Bill Jackson | 1B | --- | | | --- |
| Thomas Johnson | OF-1B | A+ | | 1984-1989 | --- |
| Alex Jones | P | MLB | 1889-1903 | 1889-1903 | --- |
| Dax Jones | CF | MLB | 1996-1996 | 1991-2000 | Creighton |
| Henry Jones | P | MLB | 1890-1890 | 1890-1890 | --- |
| Dutch Jordan | 2B-3B | MLB | 1903-1904 | 1903-1904 | --- |
| Joe Kail | SS | A | | 1994-1995 | Johns Hopkins |
| Jon Henry Kail | OF | NCAA | | 2000-2003 | Georgia Tech, East Carolina |
| Tom Kail | OF | Rk | | 1998-2000 | --- |
| Jack Kartsonas | P | NCAA | | 2021-2021 | Kent State, John Carroll |
| Blaze Katich | OF | Rk | | 1983-1983 | Pensacola State College |
| Joe Kaye | P | NCAA | | 2005-2007 | Duquesne |
| Jonathan Kelly | OF-IF | NCAA | | 2000-2004 | Duquesne |
| Russ Kemmerer | P | MLB | 1954-1963 | 1954-1963 | Pittsburgh, Glenville State College |
| Will Kengor | SS | AAA | | 2011-2019 | Slippery Rock Pennsylvania |
| Ray Kennedy | H | MLB | 1916-1916 | 1916-1916 | --- |
| Frank Killen | P | MLB | 1891-1900 | 1891-1900 | --- |
| Ryan Kircher | P | NCAA | | 2019-2019 | Kent State |
| Alex Kirilloff | OF | AA | | 2016-2019 | --- |
| Enos Kirkpatrick | 3B-SS | MLB | 1912-1913 | 1912-1913 | Duquesne |
| Harry Kirsch | P | MLB | 1910-1910 | 1910-1910 | --- |
| Austin Kitchen | P | NCAA | | 2016-2019 | Coastal Carolina |
| Ron Kitchen | P | A+ | | 1993-1997 | Youngstown State |
| Mark Klein | P | AAA | | 1977-1978 | Broward College |
| Robert Klinchock | P | A | | 2016-2019 | Shenandoah |
| Tom Knowlson | P | MLB | 1915-1915 | 1915-1915 | --- |
| David Koller | P | A- | | 1983-1985 | --- |
| Mark Koller | P | A- | | 1985-1988 | --- |
| Chris Koutsavlis | P | NCAA | | 2003-2006 | Marshall |
| Aaron Krause | P | Rk | | 1981-1984 | Pittsburgh |
| Ray Krawczyk | P | MLB | 1984-1989 | 1981-1989 | Oral Roberts, Golden West College |
| Richard Kuhn | P | --- | | | --- |
| Tony Lacava | IF | A | | 1983-1984 | Pittsburgh, Gulf Coast CC |
| Al Lachowicz | P | MLB | 1983-1983 | 1981-1986 | Pittsburgh |
| Larry Lamonde | P | AAA | | 1981-1985 | Pittsburgh |
| Chappy Lane | 1B-OF | MLB | 1882-1884 | 1882-1884 | --- |
| Troy Laneve | OF | NCAA | | 2020-2021 | Vanderbilt |
| Chip Lang | P | MLB | 1975-1976 | 1975-1979 | --- |
| Geoff Lang | OF | NCAA | | 2007-2007 | UMD-Baltimore Cty, Pennsylvania State Univ. Erie, the Behrend College |
| Ryan Lang | P | NCAA | | 2008-2008 | Furman |
| Josh Lapiana | P | Indy | | 2015-2019 | Akron, Utah |
| Chuck Lauer | OF | MLB | 1884-1890 | 1884-1890 | --- |
| Derek Law | P | MLB | 2016-2019 | 2010-2019 | Miami-Dade College |
| Joe Law | P | AAA | | 1983-1992 | Pensacola State College |
| Gene Layden | OF | MLB | 1915-1915 | 1915-1915 | --- |
| David Lee | P | MLB | 1999-2004 | 1996-2006 | Mercyhurst |
| Regis Leheny | P | MLB | 1932-1932 | 1932-1932 | --- |
| Mark Lehman | P | --- | | | Army |
| Taylor Lehman | P | A | | 2015-2019 | Penn State |
| J.R. Leonardi | P | NCAA | | 2010-2014 | Pittsburgh |
| Jim Levey | SS | MLB | 1930-1933 | 1930-1933 | --- |
| Len Levy | COACH | --- | | | --- |
| Chris Lewis | P | NCAA | | 2000-2003 | Duquesne |
| Jack Lewis | 2B | MLB | 1911-1911 | 1911-1911 | --- |
| Phil Lewis | SS | MLB | 1905-1908 | 1905-1908 | Cornell |
| Patrick Leyland | 1B | AA | | 2010-2015 | --- |
| John Lickert | C | MLB | 1981-1981 | 1978-1985 | --- |
| Logan Lippert | OF | NCAA | | 2011-2013 | New Mexico, Lamar CC |
| Brian Lipscomb-Walsh | OF | Rk | | 1986-1987 | --- |
| Shane Liska | P | NCAA | | 2009-2012 | Xavier, Creighton |
| Christopher Litwin | P | Rk | | 1984-1984 | --- |
| Matt Litzinger | OF | Indy | | 2006-2014 | Pittsburgh |
| Joe Lombardo | P | NCAA | | 2008-2010 | Duquesne |
| Brian Long | P | NCAA | | 2006-2009 | Cleveland State |
| Bobby Lowe | 2B-3B | MLB | 1890-1907 | 1890-1907 | --- |
| Ronald Lowe | P | A | | 2006-2010 | Pasco-Hernando CC, Saint Leo |
| David Lucchino | C | --- | | | --- |
| Joe Lydic | 1B | A+ | | 1999-2003 | Pittsburgh |
| Mark Lynds | OF | A- | | 1983-1984 | Los Medanos College |
| Mitchell Machi | P-OF | NCAA | | 2015-2015 | University at Buffalo |
| Frank Madden | C | --- | | | --- |
| Gregg Magistri | P | A+ | | 1984-1986 | Louisiana Tech, Pensacola State College |
| Steve Maiolo | IF | NCAA | | 2003-2006 | Duquesne |
| Al Mamaux | P | MLB | 1913-1924 | 1913-1924 | Duquesne |
| Nic Manuppelli | P | NCAA | | 2011-2014 | Youngstown State |
| Zac Manuppelli | P | NCAA | | 2014-2016 | USC-Upstate, Lock Haven Pennsylvania |
| Dan Marino | P | --- | | | Pittsburgh |
| Ron Markowski | OF-SS | --- | | | --- |
| Peter Maropis | SS | AA | | 1977-1977 | Allegheny College |
| Gino Marra | P | NCAA | | 2020-2021 | UNC Asheville |
| Brandon Marsonek | P | A+ | | 2016-2018 | Alabama A&M, Roane State CC |
| Roger Martin | C | A- | | 1981-1981 | Central Florida CC, Point Park College |
| Michael Massi | 2B | A+ | | 2013-2015 | Mercer, Volunteer State CC |
| Cameron Masterman | 3B-1B | NCAA | | 2019-2021 | Louisville |
| Nick Maue | P | NCAA | | 2019-2019 | Dayton |
| Jack McCandless | OF | --- | | | --- |
| Dan McCauley | C | NCAA | | 2018-2020 | Ohio |
| Harry McChesney | OF | MLB | 1904-1904 | 1904-1904 | --- |
| Chris McCuiston | OF | NCAA | | 1999-2002 | Michigan State |
| John McCurdy | SS | AA | | 2001-2006 | Maryland |
| Kevin McDowell | P | AA | | 1999-2005 | Bucknell |
| Sam McDowell | P | MLB | 1961-1975 | 1961-1975 | --- |
| Cory McGinnis | P | Rk | | 2009-2013 | Winthrop, Shelton State CC, South Alabama, Auburn-Montgomery |
| Eric McGough | P | NCAA | | 2007-2009 | Charleston Southern |
| Scott McGough | P | MLB | 2015-2015 | 2009-2020 | Oregon |
| Mike McHugh | P | A+ | | 1994-1998 | Penn State |
| Robert McKee | P | --- | | | --- |
| Todd McKinney | IF-OF | NCAA | | 2001-2002 | Navy |
| Mark McKnight | 2B | Rk | | 1979-1979 | Pfeiffer |
| Pete McShannic | 3B | MLB | 1888-1888 | 1888-1888 | --- |
| Justin Meis | P | NCAA | | 2019-2021 | Eastern Michigan |
| Frank Merigliano | P | AAA | | 1988-1993 | Pittsburgh |
| Scott Merlack | P | A | | 1980-1982 | --- |
| James Messmer | 3B | A+ | | 1977-1979 | Point Park College |
| Bill Metil | 2B-3B | A+ | | 1980-1983 | Slippery Rock Pennsylvania |
| Keith Meyer | P | A | | 2005-2009 | Duquesne |
| Richard Michalek | 3B | Indy | | 2006-2009 | Slippery Rock Pennsylvania |
| Alex Miklos | OF | NCAA | | 2012-2016 | Kent State |
| Aaron Miles | 2B | MLB | 2003-2011 | 1995-2016 | --- |
| Johnny Miljus | P | MLB | 1917-1929 | 1917-1929 | Pittsburgh, Duquesne |
| Brian Miller | P | NCAA | | 2007-2010 | Wagner |
| Eddie Miller | SS | MLB | 1936-1950 | 1936-1950 | --- |
| Gary Miller | P | A- | | 1989-1992 | Penn State |
| Jim Miller | 2B | MLB | 1901-1901 | 1901-1901 | --- |
| Ray Miller | 1B | MLB | 1917-1917 | 1917-1917 | --- |
| Steven Miller | P | NCAA | | 2019-2020 | Penn State |
| John Mohardt | OF | MLB | 1922-1922 | 1922-1922 | Notre Dame |
| Patrick Monteverde | P | NCAA | | 2017-2021 | Texas Tech, Virginia Wesleyan College, Seton Hill University |
| Lew Moren | P | MLB | 1903-1910 | 1903-1910 | Duquesne |
| Eric Morrison | OF | Indy | | 2005-2009 | Duquesne |
| William Morton | C | --- | | | --- |
| Richie Navari | P | NCAA | | 2013-2014 | Louisiana Tech, Scottsdale CC |
| Tom Neiman | IF | NCAA | | 2007-2007 | Radford |
| Philip Nerone | 3B | --- | | | --- |
| Joseph Nichols | P | --- | | | --- |
| James Nickerson | P | AA | | 1977-1979 | --- |
| Brice Nikithser | OF-1B | NCAA | | 2012-2013 | Ohio |
| Roger Nolan | OF-1B | Rk | | 1977-1977 | --- |
| Mike Norkus | C | NCAA | | 2011-2011 | Cleveland State |
| Shon Norris | P | A- | | 1998-1999 | North Carolina, UNC Asheville |
| Bob O'Brien | P | MLB | 1971-1971 | 1971-1971 | Arizona |
| Thomas O'Connor | OF | --- | | | --- |
| Brad O'Malley | P | --- | | | --- |
| Dan Obermeier | C | NCAA | | 2003-2006 | Davidson College |
| Matt Ogrodnik | P | Indy | | 2005-2007 | Penn State |
| Kevin Orga | P | Indy | | 1999-2004 | Louisiana-Monroe |
| Billy Otterson | SS | MLB | 1887-1887 | 1887-1887 | --- |
| Joe Pass | 2B | Indy | | 1996-1999 | Allegheny College |
| Jim Pastorius | P | MLB | 1906-1909 | 1906-1909 | --- |
| Dan Patsilevas | SS | Indy | | 2002-2002 | Allegany College of Maryland |
| Jon Pavlack | 1B | NCAA | | 2005-2006 | High Point |
| Dan Penberthy | 1B | Indy | | 2003-2003 | College of Wooster |
| Michael Pereslucha | P | Indy | | 2016-2016 | Allegheny College |
| Joe Perotti | P | NCAA | | 2008-2008 | Duquesne |
| Ben Pfinsgraff | P | A+ | | 2004-2009 | Maryland, Allegheny College |
| Marr Phillips | SS | MLB | 1884-1890 | 1884-1890 | --- |
| Ben Pierce | P | A+ | | 1987-1990 | Birmingham-Southern College, Pensacola State College |
| Jake Pilarski | P | NCAA | | 2017-2021 | The Citadel, Virginia Wesleyan College |
| Dom Popa | OF | NCAA | | 2021-2021 | Pittsburgh |
| Nico Popa | OF | NCAA | | 2017-2021 | Pittsburgh |
| Jim Popp | P | Indy | | 2000-2010 | Duquesne |
| Jake Pribanic | IF | --- | | | Penn State |
| Harris Price | OF | --- | | | --- |
| Bob Priddy | P | MLB | 1962-1971 | 1962-1971 | --- |
| Charles Proviano | SS | Rk | | 1978-1978 | Point Park College |
| Grant Psomas | SS | AAA | | 2002-2009 | West Virginia |
| Bob Purkey | P | MLB | 1954-1966 | 1954-1966 | --- |
| John Pust | SS | A+ | | 1987-1987 | Western Carolina |
| Jason Rakers | P | MLB | 1998-2000 | 1995-2003 | New Mexico State |
| Ed Rakow | P | MLB | 1960-1967 | 1960-1967 | --- |
| Brad Rea | 1B | A+ | | 1999-2007 | Pittsburgh |
| Dan Reale | C | NCAA | | 2006-2007 | Kentucky |
| Mike Reeves | P | Indy | | 2005-2019 | High Point |
| Bill Regan | 2B | MLB | 1926-1931 | 1926-1931 | --- |
| Jeremie Rehak | UMP | NCAA | | 2007-2009 | Ohio |
| Pat Reilly | C | NCAA | | 2000-2002 | Saint Joseph's |
| Wally Reinecker | 3B | --- | | | --- |
| Michael Repole | P | A- | | 2002-2006 | Birmingham-Southern College, Alabama-Birmingham |
| Jason Revesz | P | NCAA | | 2013-2015 | Kent State |
| Jeff Revesz | C | NCAA | | 2012-2015 | Kent State |
| Don Rhoten | P | NCAA | | 2001-2005 | Pittsburgh |
| Mike Rhoten | P | NCAA | | 2003-2003 | Pittsburgh |
| Chad Rice | 2B | A- | | 2004-2008 | Va Military Inst. |
| John Richmond | 2B-SS | NCAA | | 1999-2002 | Penn State |
| Nick Rispoli | P | NCAA | | 2021-2021 | Dayton |
| Mike Ritson | P | NCAA | | 2008-2010 | Winthrop, Slippery Rock Pennsylvania |
| Doug Robbins | C | AAA | | 1985-1993 | Stanford |
| Stanley Robison | COACH | --- | | | --- |
| Dave Rooker | OF | AA | | 1983-1987 | Arizona |
| Shane Russell | IF | NCAA | | 2020-2020 | Cornell |
| Stuart Rykaceski | OF | Indy | | 1999-2003 | Pittsburgh |
| Brian Sackinsky | P | MLB | 1996-1996 | 1990-1998 | Stanford |
| Bob Sadowski | P | MLB | 1963-1966 | 1963-1966 | --- |
| Ed Sadowski | C | MLB | 1960-1966 | 1960-1966 | --- |
| Jim Sadowski | P | MLB | 1974-1974 | 1974-1978 | Manatee-Sarasota |
| Ted Sadowski | P | MLB | 1960-1962 | 1960-1962 | --- |
| John Salamon | P | AA | | 1991-2000 | Allegheny College |
| Pat Santone | P | NCAA | | 2003-2004 | Saint Joseph's |
| Tom Satriano | C-3B | MLB | 1961-1970 | 1961-1970 | USC |
| Ed Sauer | OF | MLB | 1943-1949 | 1943-1949 | Elon |
| Hank Sauer | OF | MLB | 1941-1959 | 1941-1959 | --- |
| Mark Saunders | P | A- | | 1977-1979 | --- |
| Chuckie Scales | OF | NCAA | | 2015-2018 | Bucknell |
| Paul Schaal | 3B | MLB | 1964-1974 | 1964-1974 | --- |
| Lou Schettler | P | MLB | 1910-1910 | 1910-1910 | --- |
| Taylor Schmidt | OF | NCAA | | 2012-2013 | Cincinnati |
| Joe Schratz | UMP | --- | | | --- |
| Scott Schroeffel | P | AAA | | 1993-1999 | Tennessee, Florida State |
| Donald Schubert | P | A+ | | 1977-1979 | --- |
| Joe Schultz | OF-3B | MLB | 1912-1925 | 1912-1925 | --- |
| Todd Schultz | P | NCAA | | 2003-2004 | Pittsburgh |
| Dan Schwartzbauer | SS | A+ | | 2001-2007 | Duquesne |
| Mark Seaver | P | A+ | | 1995-2001 | Wake Forest |
| Clint Seymour | OF | NCAA | | 2005-2008 | Eastern Kentucky |
| Jake Seymour | P | MLB | 1882-1882 | 1882-1882 | --- |
| Spike Shannon | OF | MLB | 1904-1908 | 1904-1908 | Grove City College |
| Don Shaw | P | MLB | 1967-1972 | 1967-1972 | San Diego State |
| Jim Shaw | P | MLB | 1913-1921 | 1913-1921 | --- |
| Eli Shedd | P | NCAA | | 2021-2021 | Wagner |
| Tom Shirley | P | AAA | | 2008-2019 | Xavier |
| Mike Sikorski | OF | Indy | | 2002-2002 | Slippery Rock Pennsylvania, Cumberland, Gulf Coast CC |
| Brian Simmons | LF-CF | MLB | 1998-2001 | 1993-2004 | Michigan |
| Jared Skolnicki | OF-P | Rk | | 2014-2019 | Kent State |
| Peter Slavonic | P-OF | NCAA | | 2011-2012 | Southern Illinois |
| Jesse Slinger | P | NCAA | | 2016-2019 | Youngstown State, Lock Haven Pennsylvania |
| Elmer Smith | OF | MLB | 1886-1901 | 1886-1901 | --- |
| Frank Smith | P | MLB | 1904-1912 | 1904-1912 | Grove City College |
| Germany Smith | IF | MLB | 1884-1898 | 1884-1898 | --- |
| Heinie Smith | 2B | MLB | 1897-1903 | 1897-1903 | --- |
| Jimmy Smith | 2B-SS | MLB | 1916-1922 | 1916-1922 | Duquesne |
| Jon Smith | P | NCAA | | 2002-2005 | Duquesne |
| Matt Smith | P | A+ | | 2013-2019 | Georgetown |
| Tom Snowberger | OF | A | | 1983-1985 | Iowa |
| Adam Snyder | P | NCAA | | 2003-2011 | Southern Illinois |
| Steve Snyder | OF | NCAA | | 2010-2014 | Penn State |
| Moose Solters | OF | MLB | 1934-1943 | 1934-1943 | --- |
| Zach Spangler | P | NCAA | | 2015-2018 | Kent State |
| Jason Startari | 3B | Indy | | 2000-2004 | Duquesne |
| Bill Steen | P | MLB | 1912-1915 | 1912-1915 | Washington and Jefferson College |
| Gene Steinbrenner | 2B | MLB | 1912-1912 | 1912-1912 | --- |
| Tom Steinmetz | SS | A- | | 1976-1978 | Iowa |
| Jordan Steranka | 1B | A+ | | 2009-2015 | Penn State |
| Matt Stinebiser | C | NCAA | | 2019-2019 | Duke |
| Mark Stiteler | P | A- | | 1990-1990 | Eastern Washington, Point Park College, Blue Mountain CC |
| Tucker Stobbe | OF-C | NCAA | | 2007-2008 | High Point |
| Brian Stoecklein | SS | Rk | | 2003-2004 | California Pennsylvania |
| Gregory Stokes | 3B | Rk | | 2000-2000 | Slippery Rock Pennsylvania |
| Coleman Strohm | P | NCAA | | 2014-2017 | Lafayette College |
| Jeff Stych | OF | --- | | | Nebraska, Seminole State College |
| Scott Suehr | P | AA | | 1982-1985 | William Carey |
| Dan Sullivan | P | A+ | | 1991-1995 | Indian River CC |
| George Susce | C | MLB | 1929-1944 | 1929-1944 | St. Bonaventure |
| George Susce | P | MLB | 1955-1959 | 1955-1959 | --- |
| Buck Sweeney | OF | MLB | 1914-1914 | 1914-1914 | --- |
| John Tavares | SS-2B | Indy | | 1997-2002 | CC Allegheny County-South |
| John Taveras | SS | Indy | | 2003-2003 | Allegheny College |
| Frank Thomas | OF-3B | MLB | 1951-1966 | 1951-1966 | --- |
| Richard Thomas | P | --- | | | --- |
| Will Thompson | P | MLB | 1892-1892 | 1892-1892 | --- |
| Trent Thornton | P | MLB | 2019-2020 | 2013-2020 | North Carolina |
| Sammy Tortorella | P | NCAA | | 2021-2021 | Akron |
| Tyler Trussell | P | NCAA | | 2017-2021 | South Alabama, Hinds CC |
| Alex Valadja | P | NCAA | | 2008-2011 | James Madison |
| Richard Venezia | SS | A- | | 1994-1995 | California Pennsylvania |
| Bob Veselic | P | MLB | 1980-1981 | 1977-1983 | Mount San Antonio College |
| Ben Vey | 1B-P | NCAA | | 2015-2017 | University at Buffalo |
| John-Michael Vidic | P | NCAA | | 2005-2006 | Georgia Tech, Tulane |
| Trent Vietmeier | P | NCAA | | 2018-2021 | LSU |
| Grant Voytovich | IF | NCAA | | 2021-2021 | Bucknell |
| Andrew Walker | OF | NCAA | | 2020-2021 | Xavier |
| Matt Walker | OF | AAA | | 1999-2004 | George Washington, South Carolina |
| Neil Walker | 2B | MLB | 2009-2020 | 2004-2020 | --- |
| Bobby Wallace | SS | MLB | 1894-1918 | 1894-1918 | --- |
| Hank Watson | C | NCAA | | 2004-2005 | Pennsylvania |
| John Wehner | 3B-LF | MLB | 1991-2001 | 1988-2001 | Indiana |
| Nick Wenger | OF | NCAA | | 2004-2005 | Coppin State College, Hagerstown CC |
| Paul Westwood | SS | --- | | | --- |
| Christian Wheeler | P | NCAA | | 2010-2010 | Duquesne |
| Mike White | C | --- | | | Rutgers |
| Mike Wilcox | OF | NCAA | | 2014-2014 | Penn State |
| Griffin Williams | UT | NCAA | | 2016-2019 | Columbia, McLennan CC |
| Quentin Williams | OF | NCAA | | 2009-2010 | Northwestern |
| Brad Wilson | IF-OF | NCAA | | 1993-1996 | LSU |
| Jon Wilson | OF | NCAA | | 2014-2014 | Kent State, Maryland |
| Josh Wilson | 2B | MLB | 2005-2015 | 1999-2017 | --- |
| Mike Wilson | COACH | --- | | | Chadron State |
| Sean Wilson | IF | NCAA | | 2002-2003 | Duquesne |
| Justin Woodrow | OF | A- | | 2000-2003 | --- |
| Mike Yastrzemski | OF | AAA | | 1980-1988 | Florida State |
| Doug Young | P | AA | | 1997-2007 | Sierra College |
| TJ Zarewicz | P-2B | Indy | | 2016-2019 | --- |
| Bob Zupcic | CF-LF | MLB | 1991-1994 | 1985-1997 | Oral Roberts |
| 493 record(s) |
