| Contract data is available from the mid 2000s until the present day. Shaded records are players who signed multi-year contracts. The list of contracts may not be complete. Visit the Data Store if you're interested in purchasing the contract data. |
| Alberto Arias | Houston Astros | 2009 | 2009 | 1 | $ 401,500 | | |
| Brandon Backe | Houston Astros | 2009 | 2009 | 1 | $ 1,550,000 | | Avoided arbitration |
| Yorman Bazardo | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | Minor league contract |
| Lance Berkman | Houston Astros | 2005 | 2010 | 6 | $ 85,000,000 | $ 14.17m | Club option for 2011 |
| Geoff Blum | Houston Astros | 2009 | 2009 | 1 | $ 1,100,000 | | Option Exercised at 250 plate appearances |
| Aaron Boone | Houston Astros | 2009 | 2009 | 1 | $ 750,000 | | |
| Michael Bourn | Houston Astros | 2009 | 2009 | 1 | $ 434,500 | | |
| Doug Brocail | Houston Astros | 2009 | 2009 | 1 | $ 2,750,000 | | Club option for 2010 ($2.85m) |
| Tim Byrdak | Houston Astros | 2009 | 2009 | 1 | $ 1,000,000 | | Avoided arbitration |
| Chris Coste | Philadelphia Phillies | 2009 | 2009 | 1 | $ 460,000 | | |
| Darin Erstad | Houston Astros | 2009 | 2009 | 1 | $ 1,750,000 | | |
| Jeff Fulchino | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | |
| Geoff Geary | Houston Astros | 2009 | 2009 | 1 | $ 1,700,000 | | Avoided arbitration |
| Sam Gervacio | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | |
| Mike Hampton | Houston Astros | 2009 | 2009 | 1 | $ 2,000,000 | | |
| LaTroy Hawkins | Houston Astros | 2009 | 2009 | 1 | $ 3,500,000 | | |
| Matt Kata | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | Minor League Contract |
| Jeff Keppinger | Cincinnati Reds | 2009 | 2009 | 1 | $ 427,500 | | |
| Carlos Lee | Houston Astros | 2007 | 2012 | 6 | $ 100,000,000 | $ 16.67m | $3m signing bonus |
| Wilton Lopez | San Diego Padres | 2009 | 2009 | 1 | $ 400,000 | | |
| Tommy Manzella | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | |
| Kazuo Matsui | Houston Astros | 2008 | 2010 | 3 | $ 16,500,000 | $ 5.50m | $1.5m signing bonus |
| Edwin Maysonet | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | |
| Jason Michaels | Houston Astros | 2009 | 2009 | 1 | $ 750,000 | | |
| Brian Moehler | Houston Astros | 2009 | 2009 | 1 | $ 2,300,000 | | Mutual option for 2010 |
| Russ Ortiz | Houston Astros | 2009 | 2009 | 1 | $ 750,000 | | Minor League Contract |
| Roy Oswalt | Houston Astros | 2007 | 2011 | 5 | $ 73,000,000 | $ 14.60m | Club option for 2012 ($16m with $2m buyout) |
| Felipe Paulino | Houston Astros | 2009 | 2009 | 1 | $ 405,000 | | |
| Hunter Pence | Houston Astros | 2009 | 2009 | 1 | $ 439,000 | | |
| Humberto Quintero | Houston Astros | 2009 | 2009 | 1 | $ 610,000 | | avoided arbitration |
| Ivan Rodriguez | Houston Astros | 2009 | 2009 | 1 | $ 1,500,000 | | |
| Wandy Rodriguez | Houston Astros | 2009 | 2009 | 1 | $ 2,600,000 | | Avoided arbitration |
| Billy Sadler | San Francisco Giants | 2009 | 2009 | 1 | $ 401,500 | | |
| Chris Sampson | Houston Astros | 2009 | 2009 | 1 | $ 449,000 | | |
| Jason Smith | Houston Astros | 2009 | 2009 | 1 | $ 400,000 | | Minor League Contract |
| Miguel Tejada | Baltimore Orioles | 2004 | 2009 | 6 | $ 72,000,000 | $ 12.00m | $12m signing bonus |
| J.R. Towles | Houston Astros | 2009 | 2009 | 1 | $ 401,500 | | |
| Jose Valverde | Houston Astros | 2009 | 2009 | 1 | $ 8,000,000 | | avoided arbitration |
| Wesley Wright | Houston Astros | 2009 | 2009 | 1 | $ 425,000 | | |