| Collin Thacker | C-OF | 2014-2017 | Gardner-Webb |
| Scott Thacker | C | 2001-2004 | Charleston Southern |
| Alex Thackston | P | 2013-2014 | Marshall |
| Brett Thaden | IF | 2010-2010 | Illinois State |
| Joe Thaman | P-1B | 2001-2004 | Notre Dame |
| Christian Thames | UT | 2014-2017 | Houston Baptist, Blinn College |
| Kendall Thamm | P | 2011-2012 | Louisiana-Monroe, Angelina College |
| Conor Thane | IF | 2016-2019 | St. Mary's (CA) |
| Ben Tharp | IF | 2018-2018 | Illinois-Chicago |
| Stephen Tharp | P | 2004-2005 | Arkansas State |
| Travis Tharp | IF | 2000-2003 | Northwestern |
| Tyler Tharp | 1B | 2014-2017 | Va Military Inst. |
| Mike Thatcher | P | 2009-2012 | Hartford |
| Mike Thater | P | 2005-2008 | Holy Cross |
| Philip Thayer | SS | 2003-2004 | Western Kentucky |
| Cal Theal | P | 2019-2019 | Niagara |
| Kyle Thebeau | P | 2006-2009 | Texas A&M |
| Nick Thede | H | 2002-2002 | Portland |
| Tim Theis | P | 2002-2005 | Minnesota |
| Eric Theisen | P | 2004-2008 | Illinois State |
| Jared Theisen | OF | 2011-2014 | Oakland, Grand Rapids CC |
| Spencer Theisen | OF | 2008-2012 | Stetson, Seminole Florida, Florida Southern |
| Trent Theisen | C | 2016-2017 | Ball State |
| Wes Theiss | IF | 2012-2012 | Houston, Navarro College |
| Trevor Theissen | IF | 2013-2016 | UW Milwaukee, College of Lake County, North Carolina Central |
| John Thelan | OF | 2017-2017 | The Citadel |
| Jack Thelen | C | 2018-2019 | UW Milwaukee |
| Jamaal Thelwell | H | 2006-2009 | Jackson State |
| Brian Thene | P | 2012-2015 | Miami |
| David Theobald | P | 2005-2005 | Cincinnati |
| Kody Theobald | C | 2017-2017 | UW Milwaukee |
| Mike Theodore | P | 2010-2014 | Michigan State, Tennessee |
| Peter Theodorellis | UT-P | 2018-2019 | Fairleigh Dickinson |
| Nick Theoharis | IF | 2002-2005 | Stony Brook |
| Grant Theophilus | P | 2006-2008 | Cal Poly, Golden West College |
| Chris Theordor | P | 2008-2011 | Fairleigh Dickinson |
| Aaron Therien | C | 2017-2019 | Duke |
| Tyler Theriot | IF | 2010-2019 | Lamar, LSU-Eunice, Nicholls State |
| Blake Therrian | P | 2017-2019 | Western Carolina, Florence-Darlington Tech |
| John Thetford | P | 1977-1981 | Memphis |
| B Theus | --- | 2010-2010 | Grambling State |
| Jamal Thewell | H | 2006-2006 | Jackson State |
| Zach Thiac | P | 2013-2016 | Nicholls State |
| Corey Thibault | C | 2010-2011 | Valparaiso, Irvine Valley College |
| Stephen Thibault | IF | 2017-2019 | Sacred Heart |
| Chris Thibideau | SS | 2016-2017 | Midland College, North Florida |
| Schuyler Thibodaux | C | 2019-2019 | McNeese State |
| Cole Thibodeau | UT | 2017-2018 | Nebraska at Omaha |
| Pat Thibodeau | OF | 2010-2011 | Maine |
| De'Mario Thibodeaux | P | 2010-2013 | Texas Southern, McLennan CC |
| Dustin Thibodeaux | P | 2004-2006 | Texas-San Antonio |
| Gabriel Thibodeaux | IF | 2011-2012 | Creighton, LSU-Eunice |
| James Thibodeaux | OF | 2004-2006 | McNeese State |
| Johnnie Thibodeaux | 3B | 2000-2001 | LSU |
| Jordan Thibodeaux | P | 2007-2009 | San Jacinto, Lamar |
| Tyler Thibodeaux | C | 2019-2019 | Northwestern State |
| Cole Thiede | OF | 2016-2016 | Alabama A&M |
| John David Thieke | IF | 2002-2003 | Murray State |
| Taylor Thieke | IF | 2007-2010 | Murray State |
| Jacob Thiel | P | 2002-2003 | Binghamton, Canada College |
| Jefferson Thiel | C | 2000-2003 | Washington |
| Al Thielemann | P | 2001-2001 | Long Beach State, USC |
| Matt Thielepape | 1B-3B | 2009-2010 | Winthrop, Angelina College |
| Samuel Thielepape | SS | 1984-1984 | Northwood University, South Alabama |
| Pat Thielke | P | 2003-2006 | North Dakota State |
| Ben Thielsen | IF | 2009-2010 | UNC Wilmington, Edmonds CC |
| John Thies | P | 2006-2007 | St. Louis CC-Meramec, Missouri |
| Jonathan Thiess | P | 2013-2013 | Army |
| Jacob Thiessen | P | 2016-2019 | USC-Upstate, Indian Hills CC-Centerville |
| Matt Thiessen | P | 2002-2005 | UC Riverside, California Baptist |
| Matt Thiffault | P | 2001-2003 | Fairfield |
| Andrew Thigpen | IF | 2008-2011 | Missouri |
| John Thigpen | P | 2012-2014 | Southern |
| Michael Thigpen | P | 2002-2002 | Georgia Southern |
| Noah Thigpen | IF | 2019-2019 | Tennessee-Martin |
| Nate Thimjon | OF | 2018-2019 | Fresno State |
| Bryson Thionnet | IF | 2012-2014 | Ark-Little Rock, Connors State College |
| Matt Thissen | P | 2002-2002 | Northern Iowa, Iowa Central CC |
| Nick Thode | C-IF | 2008-2009 | Stony Brook, SUNY-Cortland |
| Chris Thogersen | P | 1999-2001 | San Francisco |
| Sean Thom | IF | 2006-2006 | North Dakota State |
| Ben Thoma | OF-C | 2008-2012 | Eastern Illinois |
| Jimmy Thoma | C | 2004-2007 | Dallas Baptist |
| Zach Thoma | IF | 2008-2012 | Kansas, Western Michigan |
| Chad Thoman | OF | 2002-2002 | Lehigh |
| Adrian Thomas | OF | 2008-2009 | Pennsylvania |
| Ako Thomas | IF | 2016-2019 | Michigan |
| Alec Thomas | P | 2007-2010 | Navy |
| Allen Thomas | P | 2003-2003 | UNC-Greensboro, Louisburg College |
| Alphonso Thomas | C | 2008-2010 | Southern, Lipscomb |
| Andrew Thomas | OF | 2009-2011 | Central Michigan |
| Andrew Thomas | 3B | 2012-2012 | Florida A&M |
| Andy Thomas | C | 2017-2020 | Baylor |
| Aric Thomas | COACH | 1992-1995 | UC Riverside, Oklahoma |
| Austin Thomas | P | 2015-2017 | Alabama-Birmingham, Chattahoochee Val |
| Babe Thomas | C-OF | 2014-2017 | Winthrop |
| Blake Thomas | P | 2013-2013 | Tennessee, Gordon College |
| Blake Thomas | P | 2014-2015 | Miss. Valley St, East Mississippi CC |
| Blake Thomas | C | 2014-2017 | Texas-Pan American, Ranger College, Houston Baptist |
| Blake Thomas | SS-2B | 2015-2018 | Lipscomb, Cleveland State CC |
| Brady Thomas | C | 2006-2011 | Florida State, South Carolina |
| Brandon Thomas | IF | 2013-2014 | Lipscomb |
| Brandon Thomas | P | 2017-2018 | Alcorn State, Prairie State College |
| Brett Thomas | C | 2007-2008 | California, Diablo Valley |
| Brett Thomas | 1B | 2008-2012 | North Carolina, Winthrop |
| Brett Thomas | P | 2012-2012 | Missouri |
| Brett Thomas | P | 2013-2015 | SIU-Edwardsville, Jefferson College |
| Brian Thomas | H | 2004-2004 | Arkansas-Pine Bluff |
| Bryan Thomas | IF | 2004-2007 | Virginia Tech |
| Brycen Thomas | P-IF | 2018-2020 | Middle Tenn State |
| Candler Thomas | OF | 2012-2013 | Miss. Valley St |
| Cash Thomas | OF | 2010-2011 | UNLV, Fresno City College |
| Chase Thomas | P | 2008-2009 | San Diego State, Fresno City College |
| Chris Thomas | C | 2011-2012 | Alabama A&M |
| Clif Thomas | OF | 2003-2003 | Middle Tenn State, FSC at jacksonville |
| Colby Thomas | OF | 2020-2020 | Mercer |
| Colton Thomas | OF | 2017-2019 | South Alabama |
| Connor Thomas | P | 2016-2016 | Lamar, Western Texas College |
| Craig Thomas | P | 2005-2008 | South Carolina |
| Dale Thomas | --- | 2020-2020 | Coastal Carolina |
| Dalton Thomas | P | 2014-2017 | Ark-Little Rock, Meridian CC |
| David Thomas | SS | 2001-2004 | Richmond |
| David Thomas | P | 2006-2006 | Oakland |
| David Thomas | OF | 2012-2015 | Air Force |
| Demarco Thomas | P | 2019-2019 | Prairie View A&M |
| Derrick Thomas | OF | 2010-2012 | Memphis |
| Devin Thomas | P | 2003-2005 | Austin Peay, Cochise College |
| DJ Thomas | P | 2011-2014 | NC State |
| Drew Thomas | OF | 2003-2003 | Ohio State |
| Drew Thomas | C | 2006-2010 | Louisiana Tech |
| Drew Thomas | OF | 2018-2019 | Coppin State College |
| Dustin Thomas | C | 2005-2006 | Youngstown State, Columbus State |
| Eddie Thomas | P | 2007-2008 | Florida A&M |
| Edward Thomas | P | 2003-2005 | Grambling State |
| Elgin Thomas | H | 2007-2009 | Coppin State College |
| Erik Thomas | OF | 2003-2003 | Fairleigh Dickinson |
| Gary Thomas | SS | 2012-2015 | Jackson State |
| Geoffrey Thomas | P | 2010-2011 | Southern Miss |
| Greg Thomas | OF | 2004-2006 | Miss. Valley St, Sacramento City College |
| Harry Thomas | P | 2014-2018 | Delaware State, Campbell |
| Hayden Thomas | P | 2019-2019 | Texas A&M-Corpus Christi |
| Hunter Thomas | OF | 2012-2016 | Georgia Southern |
| Isaiah Thomas | OF | 2019-2020 | Vanderbilt |
| J-Bob Thomas | COACH | 2004-2005 | Abilene Christian |
| J.T. Thomas | 1B | 2009-2009 | Alabama A&M |
| J.T. Thomas | C | 2017-2018 | Mercer, Chattahoochee Val |
| Jake Thomas | OF | 2011-2014 | Bowling Green State |
| Jared Thomas | --- | 2020-2020 | Miami |
| Jarrett Thomas | IF | 2006-2007 | Alabama A&M |
| Jason Thomas | IF | 2009-2010 | Prairie View A&M, Compton CC |
| Jeff Thomas | OF | 2005-2008 | Northern Illinois |
| Jerard Thomas | H | 2007-2009 | Alabama A&M |
| Jeremy Thomas | OF | 2016-2017 | Texas Southern |
| Jesse Thomas | OF | 2002-2003 | Fairleigh Dickinson, Old Dominion |
| Joey Thomas | C | 2015-2018 | Cincinnati |
| John Thomas | IF | 2017-2020 | USC |
| Johnathon Thomas | OF | 2019-2020 | Houston |
| Johnny Thomas | IF | 2010-2013 | New Orleans, Middle Tenn State |
| Jonathan Thomas | P | 2005-2005 | Savannah State |
| Jordan Thomas | IF | 2013-2015 | Bethune-Cookman |
| Josh Thomas | P | 1999-2002 | Eastern Kentucky |
| Josh Thomas | OF | 2004-2005 | Nicholls State |
| Josh Thomas | C | 2005-2015 | Allan Hancock College, Cal Poly, San Jose State |
| Justin Thomas | IF | 2000-2002 | Memphis |
| Justin Thomas | P | 2002-2003 | Appalachian State, Montreat College |
| Justin Thomas | 3B-1B | 2012-2015 | Rider |
| Justin Thomas | P | 2013-2016 | Quinnipiac |
| K.T. Thomas | P | 2014-2014 | Delaware State, Salem CC |
| Kevin Thomas | IF | 2016-2019 | Pennsylvania |
| Kurt Thomas | IF | 2001-2004 | Fordham |
| Kyle Thomas | P | 2003-2005 | SUNY - Albany |
| Kyle Thomas | P | 2008-2008 | Alcorn State |
| Kyle Thomas | P | 2010-2013 | Delaware, California Pennsylvania |
| Larry Thomas | OF | 2007-2007 | Bethune-Cookman |
| Lee Thomas | IF | 2017-2019 | Incarnate Word |
| Levi Thomas | P | 2018-2020 | Troy |
| Luke Thomas | P | 2002-2004 | Towson |
| Malcolm Thomas | P | 2009-2010 | Jacksonville State |
| Matt Thomas | IF | 2005-2006 | Lipscomb |
| Matt Thomas | P | 2006-2007 | Troy, Pittsburgh |
| Matt Thomas | P | 2010-2010 | Canisius College |
| Matt Thomas | P | 2013-2015 | UNLV, Feather River College |
| Matt Thomas | P | 2015-2015 | South Dakota State, Sioux Falls |
| Matt Thomas | C-1B | 2018-2019 | Harvard |
| Matt Thomas | C-OF | 2019-2019 | William and Mary |
| Matthew Thomas | P | 2005-2005 | Samford |
| Matthew Thomas | SS | 2005-2007 | Washington State |
| Michael Thomas | P-OF | 2013-2013 | Va. Commonwealth |
| Nate Thomas | 2B | 2002-2004 | Texas Christian |
| Nate Thomas | OF | 2010-2011 | Indiana U.-Purdue U.-FW, Johnson County CC |
| Nate Thomas | IF | 2019-2019 | Saint Joseph's |
| Nathan Thomas | P | 2017-2018 | Northern Illinois |
| Nick Thomas | P-IF | 2009-2011 | SE Missouri State, McLennan CC |
| Nolan Thomas | P | 2013-2014 | South Florida, Tallahassee CC, Meridian CC |
| Omar Thomas | H | 2008-2008 | Alcorn State |
| Parker Thomas | P | 2010-2010 | North Carolina |
| Parker Thomas | P | 2013-2015 | Central Florida, Weatherford College, Texarkana College |
| Patrick Thomas | P | 2006-2009 | Louisiana Tech |
| Peyton Thomas | 3B | 2019-2019 | North Alabama |
| Quenten Thomas | P | 2017-2018 | Norfolk State |
| Radd Thomas | P | 2018-2020 | UC Santa Barbara, Sierra College, Washington State |
| Rafael Thomas | OF | 2008-2012 | Oklahoma State, Southern Arkansas |
| Rhylan Thomas | OF | 2020-2020 | USC |
| Rickey Thomas | 1B | 2004-2006 | Prairie View A&M, Stephen F. Austin |
| Ryan Thomas | C | 2009-2012 | George Washington |
| Ryan Thomas | P | 2014-2017 | Marist |
| Seb Thomas | P | 2020-2020 | Auburn |
| Sherman Thomas | H | 2010-2012 | Arkansas-Pine Bluff |
| Steve Thomas | IF | 2000-2002 | South Carolina |
| Thayer Thomas | CF | 2019-2019 | NC State |
| Tim Thomas | P | 2006-2007 | Gardner-Webb |
| TJ Thomas | 1B-OF | 2008-2012 | San Diego State, Hofstra |
| Todd Thomas | P-IF | 2002-2007 | Toledo |
| Travis Thomas | P | 2010-2014 | Va Military Inst. |
| Trey Thomas | OF | 2006-2009 | The Citadel |
| Tyler Thomas | P | 2013-2013 | SE Missouri State |
| Tyler Thomas | P | 2018-2020 | Baylor |
| Tyrone Thomas | IF | 2017-2018 | Prairie View A&M, Huston-Tillotson College (Texas) |
| Will Thomas | OF | 2002-2005 | Fresno State |
| Will Thomas | OF | 2011-2011 | Tennessee Tech |
| William Thomas | OF | 2017-2018 | Alcorn State, Rainy River CC |
| Willy Thomas | IF | 2017-2017 | Pennsylvania |
| Zach Thomas | SS | 2005-2005 | Massachusetts |
| Zach Thomas | P-OF | 2015-2018 | Chicago State |
| Drake Thomason | P | 2012-2013 | South Carolina |
| Josh Thomason | P | 2011-2011 | Southern Miss, Navarro College |
| Kyle Thomason | 1B-OF | 2005-2006 | Texas-Arlington, Vernon College |
| Logan Thomason | IF | 2019-2019 | Eastern Kentucky |
| Marshal Thomason | P | 2008-2011 | Mount Saint Mary |
| Kerry Thomasson | P | 2007-2007 | Central Arkansas, Cedar Valley College |
| Michael Thomasson | OF | 2007-2008 | Laney College, Solano CC (CA), Cal State East Bay |
| Michael Thomasson | P | 2014-2015 | Bethune-Cookman |
| Logan Thomazin | P | 2019-2019 | Missouri State |
| Clay Thomley | P | 2007-2008 | Troy |
| Aaron Thompkins | OF | 2008-2011 | Furman |
| Coley Thompkins | P | 2012-2015 | Campbell |
| Demond Thompkins | OF | 1992-1993 | UNLV |
| Aaron Thompson | IF | 2003-2004 | Saint Louis |
| Aaron Thompson | OF | 2004-2006 | Butler |
| Adam Thompson | OF | 2002-2005 | St. Mary's (CA) |
| Austin Thompson | IF | 2018-2020 | Georgia Southern |
| Beau Thompson | C | 2002-2002 | Kansas |
| Ben Thompson | P | 1998-2002 | Nicholls State |
| Bobby Thompson | P | 2008-2009 | West Virginia, Walters State CC |
| Brett Thompson | OF | 2012-2015 | Lafayette College |
| Brian Thompson | P | 2010-2011 | Fordham |
| Brian Thompson | IF | 2012-2014 | USC-Upstate |
| Bryn Thompson | IF | 2007-2010 | McNeese State |
| Cade Thompson | IF | 2009-2010 | Nebraska, Central Arizona College |
| Caleb Thompson | P | 2017-2017 | James Madison |
| Cameron Thompson | OF | 2017-2020 | Kansas State |
| Carter Thompson | OF | 2017-2019 | North Dakota State |
| Chet Thompson | OF | 2011-2014 | Portland |
| Chris Thompson | C-IF | 2006-2006 | Eastern Illinois, College of DuPage |
| Chris Thompson | P | 2013-2014 | Stephen F. Austin, Angelina College |
| Chris Thompson | OF | 2017-2017 | Presbyterian College |
| Clay Thompson | OF | 2019-2019 | Oakland |
| Cody Thompson | P | 2011-2012 | Prairie View A&M, Laredo CC |
| Cole Thompson | P | 2010-2013 | Centenary College |
| Cooper Thompson | P | 2018-2019 | Sacred Heart |
| Corbett Thompson | C | 2004-2004 | New Mexico State, Oklahoma City |
| Dan Thompson | IF-OF | 2002-2005 | Minnesota |
| David Thompson | P | 2008-2008 | Southern Utah, Fullerton College |
| Deion Thompson | IF | 2016-2019 | Western Illinois |
| Devontae Thompson | P | 2015-2016 | Alcorn State, Jones County Junior College |
| Dicarlo Thompson | P | 2004-2007 | Florida State |
| Eric Thompson | P | 2005-2008 | Vermont |
| Graham Thompson | OF | 2000-2003 | Appalachian State |
| Greg Thompson | C | 2018-2019 | SE Louisiana |
| Hayden Thompson | P-1B | 2002-2003 | Ark-Little Rock |
| Ian Thompson | P | 2007-2010 | Stetson |
| J.J. Thompson | IF | 2008-2011 | Cal Poly |
| Jack Thompson | 1B | 2015-2018 | Georgia State |
| Jake Thompson | P | 2013-2014 | Western Kentucky, Iowa Western CC |
| Jake Thompson | IF | 2017-2020 | South Dakota State, Kentucky, Oklahoma State |
| James Thompson | P | 2003-2004 | UNLV, Sacramento City College |
| Jared Thompson | OF-P | 2009-2011 | UC Davis, Fresno State, Fresno City College, Culver-Stockton College |
| Jarrett Thompson | P | 2016-2019 | Gardner-Webb |
| Jason Thompson | 1B-OF | 2004-2006 | Baylor |
| Jay Thompson | --- | 2020-2020 | Georgia Southern |
| Jeff Thompson | 3B | 2001-2002 | Central Oklahoma |
| Jeff Thompson | P | 2010-2012 | University at Buffalo, Navarro College |
| Jordan Thompson | OF | 2019-2019 | Incarnate Word |
| Josh Thompson | P | 2019-2020 | Seattle |
| Josh Thompson | OF | 2019-2019 | Eastern Michigan |
| Joshua Thompson | OF | 2011-2011 | Liberty, El Camino College |
| Joshua Thompson | P | 2013-2015 | NC A&T State |
| Justin Thompson | P | 2016-2017 | Eastern Michigan, Concordia College |
| Justin Thompson | --- | 2020-2020 | Texas State |
| K Thompson | H | 2009-2009 | Grambling State |
| Kaleb Thompson | P | 2003-2005 | Dayton |
| Kenny Thompson | OF | 2001-2004 | Texas Christian |
| Kiko Thompson | OF | 2014-2014 | SE Louisiana, Hinds CC |
| Kyle Thompson | P | 2007-2009 | Stanford |
| L.K. Thompson | IF | 2011-2015 | West Virginia, Florida Intl, Barry |
| Mark Thompson | P | 2002-2004 | Le Moyne |
| Marshall Thompson | P | 2011-2013 | West Virginia |
| Matt Thompson | 1B-C | 2000-2002 | Northwestern |
| Matt Thompson | IF | 2009-2009 | New Mexico, Eastern Arizona College |
| Michael Thompson | C | 2004-2005 | McNeese State, Texarkana College |
| Michael Thompson | C | 2004-2004 | Vermont |
| Mike Thompson | P | 2001-2004 | Georgia Southern, UNC Charlotte |
| Mike Thompson | 1B-P | 2001-2003 | Long Island-Brooklyn, Monmouth |
| Mike Thompson | IF | 2010-2011 | Binghamton |
| Nate Thompson | C | 2007-2010 | Liberty |
| Nate Thompson | COACH | 2004-2005 | Dallas Baptist |
| Nate Thompson | IF | 2010-2010 | Southern |
| Noah Thompson | P | 2017-2020 | Seton Hall |
| Noah Thompson | P | 2018-2019 | Lipscomb |
| Patrick Thompson | P | 2006-2006 | Florida |
| Patrick Thompson | IF | 2006-2008 | Nicholls State, LSU-Shreveport |
| Paxton Thompson | IF-P | 2019-2019 | Bradley |
| Phillip Thompson | P | 2004-2006 | Liberty |
| Robb Thompson | P-OF | 2007-2007 | Cincinnati |
| Rockeil Thompson | OF | 2002-2005 | Alcorn State |
| Ronald Thompson | OF | 2013-2015 | North Carolina Central, Southeastern CC |
| Russell Thompson | P | 2015-2016 | Presbyterian College |
| Ryan Thompson | IF | 2008-2010 | Dallas Baptist |
| Ryan Thompson | P-OF | 2010-2013 | Connecticut, Franklin Pierce University |
| Ryan Thompson | P | 2011-2011 | Wagner |
| Ryan Thompson | OF | 2013-2016 | Alabama State |
| Ryan Thompson | P | 2017-2018 | Illinois |
| Ryan Thompson | IF-OF | 2019-2019 | Toledo |
| Sean Thompson | P | 2010-2011 | Towson |
| Sean Thompson | P | 2014-2016 | Texas Tech |
| Shane Thompson | IF | 2006-2007 | UNC-Greensboro |
| Stephen Thompson | IF | 2018-2019 | Navy |
| Stevie Thompson | OF | 2015-2018 | Stephen F. Austin, Cowley College, Science and Arts |
| TJ Thompson | IF-OF | 2007-2010 | North Florida |
| Travis Thompson | P | 2010-2010 | Morehead State, Bluefield State College |
| Trent Thompson | P | 2014-2017 | Central Florida |
| Trevor Thompson | OF-IF | 2002-2005 | Navy |
| Trevor Thompson | P | 2009-2009 | North Dakota State |
| Trevor Thompson | UT-P | 2017-2019 | Hartford, Cypress College, Massachusetts-Lowell |
| Tyler Thompson | P | 2008-2011 | Portland |
| Tyler Thompson | P | 2009-2012 | Florida |
| Tyler Thompson | P | 2017-2019 | Austin Peay |
| Tyler Thompson | OF | 2019-2020 | Utah |
| Wes Thompson | P | 2005-2007 | Texas A&M-Corpus Christi, Laredo CC |
| Will Thompson | P | 2013-2017 | Auburn, Tallahassee CC, Augusta State |
| Zach Thompson | OF | 2011-2011 | Cleveland State, Marshalltown CC |
| Zach Thompson | IF | 2012-2016 | East Tennessee State |
| Zach Thompson | P | 2019-2019 | Maryland |
| Zach Thompson | P | 2016-2019 | New Orleans, Alderson-Broaddus College |
| Zack Thompson | SS | 2002-2002 | Seton Hall |
| Andy Thoms | OF | 2001-2004 | Florida Atlantic |
| David Thoms | IF | 2008-2009 | Georgia, Chipola College |
| Hunter Thoms | IF | 2003-2005 | Northwestern State |
| Jimmy Thoms | P | 2002-2005 | Va Military Inst. |
| Josh Thoms | 2B-SS | 2002-2004 | Mississippi State, East Central CC |
| Blake Thomsen | IF | 2012-2015 | Princeton |
| Kevin Thomsen | P | 2015-2018 | Princeton |
| Cody Thomson | P | 2011-2014 | Pennsylvania |
| Danny Thomson | P | 2012-2016 | Princeton |
| Jeff Thomson | P | 2005-2009 | Northeastern |
| Lendsey Thomson | P | 2007-2008 | Missouri, Bradley, Fort Scott CC |
| Tanner Thomson | P | 2017-2018 | Georgia State, Georgia Highlands |
| Chris Thorburn | OF | 2019-2019 | UNC Wilmington |
| Sam Thoresen | P | 2018-2020 | Minnesota |
| Mac Thoreson | P | 2010-2013 | Miami |
| Tyler Thorington | P | 2017-2019 | Western Michigan |
| Mitch Thorn | P | 2006-2006 | Alabama-Birmingham, Lurleen B. Wallace CC |
| Brock Thornburg | P | 2006-2007 | Western Carolina, Spartanburg Methodist College |
| Drunante Thornburg | P | 2002-2003 | Alcorn State |
| Randy Thornburg | P | 2004-2004 | Alcorn State |
| Scott Thornburg | C | 2009-2012 | Creighton |
| Geoffrey Thorne | C | 2006-2006 | UC Irvine |
| Josh Thorne | P | 2013-2016 | Stetson |
| Matt Thorne | IF-OF | 2011-2013 | Air Force |
| Brett Thornell | IF | 2011-2014 | Texas A&M, McLennan CC, Stephen F. Austin |
| Kyle Thornell | 3B | 2013-2016 | McLennan CC, Stephen F. Austin |
| Joel Thorney | P | 2007-2008 | Maine, Texarkana College |
| Chad Thornhill | 1B | 2003-2004 | Georgia |
| Austin Thornton | C | 2004-2007 | Dallas Baptist |
| Brooks Thornton | OF | 2008-2008 | Murray State, Jefferson State CC |
| Cole Thornton | P-OF | 2006-2007 | Georgia State, Eastern Mennonite |
| Dominic Thornton | OF | 2015-2017 | Kansas State, Howard College, Tennessee |
| Doug Thornton | P | 2001-2002 | UNLV |
| Eric Thornton | 3B | 2002-2005 | Oklahoma |
| Jake Thornton | OF-P | 2009-2010 | Illinois State |
| Jamaal Thornton | P | 2004-2005 | Alabama State |
| Joe Thornton | P | 2004-2007 | Pennsylvania |
| Kyle Thornton | P | 2007-2007 | Odessa, Louisville, Cowley College |
| Ryan Thornton | OF | 2008-2009 | American River College, UNLV |
| Spencer Thornton | OF | 2012-2016 | San Diego State |
| TJ Thornton | P | 2011-2017 | Tennessee, Indian River CC |
| Tyler Thornton | P | 2006-2012 | Bradley, Northeastern, James Madison |
| Tyler Thornton | P | 2019-2020 | St. Mary's (CA), Arizona State |
| Brennan Thorpe | P | 2008-2009 | Saddleback College, Portland |
| Drew Thorpe | P | 2020-2020 | Cal Poly |
| Sage Thorpe | C | 2009-2010 | Utah Valley U, Phoenix College |
| Chris Thorsen | P | 2011-2014 | Marist |
| Bobby Thorson | P | 2013-2015 | Campbell, Elgin CC |
| Chris Thorup | P | 2003-2004 | Alabama-Birmingham, Johnson County CC |
| Kyle Thousand | OF | 2002-2003 | Iowa |
| Josh Thrailkill | P | 2007-2011 | Clemson, Tampa |
| Tim Thran | P | 2005-2008 | Holy Cross |
| Brian Thrash | OF | 1998-1999 | Maryland, UMD-Baltimore Cty |
| Bryan Thrasher | OF | 2004-2004 | University at Buffalo |
| Chase Thrasher | OF | 2009-2009 | SIU-Edwardsville |
| John Thrasher | OF | 2018-2019 | Hartford |
| Riggs Threadgill | P | 2019-2019 | LSU |
| Evan Threehouse | P | 2017-2019 | Radford |
| Jay Threet | 1B | 2004-2006 | Bowling Green State, Purdue |
| Marc Threet | OF | 2011-2011 | Alabama State |
| Jacob Threlkeld | OF | 2013-2014 | North Dakota, Iowa Central CC |
| Justin Threlkeld | UT | 2014-2015 | Nebraska at Omaha, Iowa Central CC |
| Tye Throneberry | OF | 2007-2010 | Central Arkansas |
| DJ Throneburg | P | 2006-2007 | Charleston Southern, Parkland College |
| Alex Thrower | OF | 2014-2017 | University at Buffalo, Kansas City CC |
| Jeff Thrower | P | 2003-2004 | Charleston Southern, Newberry |
| Alex Thul | IF | 2017-2019 | SUNY - Albany |
| Kevin Thulin | OF | 2008-2008 | Kentucky, Seminole Florida |
| Logan Thune | P | 2013-2013 | Nebraska |
| Brian Thurber | P | 2005-2006 | Central Ct State, CC of Rhode Island |
| Jacob Thurber | C-1B | 2016-2016 | Washington State |
| Jared Thurber | OF | 2019-2019 | Washington State |
| Nathan Thurber | IF | 2004-2005 | Hawaii |
| Connor Thurman | P | 2011-2011 | Nicholls State |
| Connor Thurman | P | 2020-2020 | San Diego |
| Nick Thurman | P-OF | 2004-2004 | Bowling Green State |
| Parker Thurman | OF | 2014-2014 | Miss. Valley St |
| Chase Thurston | P | 2014-2017 | Eastern Illinois |
| Bart Thyer | C | 2008-2009 | Eastern Illinois, Andrew College |
| 424 record(s) |