| Name | Pos | Salary | Through | Years Left | Notes | Years in Majors |
| M. Ramirez | LF | $23,700,000 | 2010 | 7 years left | | 12 years |
| P. Martinez | SP | $17,500,000 | 2004 | 1 years left | Free agent after this season! | 13 years |
| N. Garciaparra | SS | $11,500,000 | 2004 | 1 years left | Free agent after this season! | 9 years |
| J. Damon | CF | $8,000,000 | 2005 | 2 years left | | 10 years |
| M. Mantei | CL | $7,000,000 | 2004 | 1 years left | Free agent after this season! | 9 years |
| J. Varitek | C | $6,700,000 | 2004 | 1 years left | Free agent after this season! | 8 years |
| T. Nixon | RF | $6,500,000 | 2006 | 3 years left | | 8 years |
| D. Lowe | SP | $5,000,000 | 2004 | 1 years left | Free agent after this season! | 8 years |
| D. Ortiz | 1B | $4,590,000 | 2006 | 3 years left | | 8 years |
| T. Wakefield | SP | $4,350,000 | 2005 | 2 years left | | 12 years |
| B. Kim | SP | $4,000,000 | 2005 | 2 years left | | 6 years |
| R. Mendoza | MR | $3,600,000 | 2004 | 1 years left | Free agent after this season! | 8 years |
| S. Williamson | MR | $3,180,000 | 2004 | 1 years left | Free agent after this season! | 6 years |
| A. Embree | MR | $2,750,000 | 2004 | 1 years left | Free agent after this season! | 11 years |
| K. Millar | 1B | $2,650,000 | 2005 | 2 years left | | 7 years |
| M. Timlin | MR | $2,500,000 | 2005 | 2 years left | | 14 years |
| B. Mueller | 3B | $2,100,000 | 2005 | 2 years left | | 8 years |
| P. Reese | 2B | $1,000,000 | 2004 | 1 years left | Free agent after this season! | 8 years |
| D. Mirabelli | C | $830,000 | 2004 | 1 years left | Free agent after this season! | 9 years |
| G. Kapler | RF | $750,000 | 2004 | 1 years left | Free agent after this season! | 7 years |
| E. Burks | DH | $750,000 | 2004 | 1 years left | Free agent after this season! | 17 years |
| M. Bellhorn | 3B | $500,000 | 2004 | 1 years left | Free agent after this season! | 7 years |
| B. Webb | SP | $340,000 | 2007 | 4 years left | | 2 years |
| S. McClung | SP | $302,500 | 2004 | 1 years left | Automatic Resign. | 1 years |
| D. McCarty | LF | $300,000 | 2004 | 1 years left | Free agent after this season! | 9 years |
| C. Crespo | SS | $300,000 | 2004 | 1 years left | Possible Arbitration, 131 more days of service needed this year. | 2 years |
| B. Arroyo | SP | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $670,000), could become Free Agent with 135 more days of service this year. | 5 years |
| M. Malaska | MR | $300,000 | 2004 | 1 years left | Possible Arbitration, 133 more days of service needed this year. | 2 years |
| B. Daubach | 1B | $300,000 | 2004 | 1 years left | Free agent after this season! | 6 years |
| J. Stephens | SP | $300,000 | 2004 | 1 years left | Possible Arbitration, 146 more days of service needed this year. | 2 years |
| A. Hyzdu | LF | Minor-League-Contract | - | - | Minor League FA next year! | 4 years |
| E. Almonte | MR | Minor-League-Contract | - | - | | 1 years |
| J. Brown | MR | Minor-League-Contract | - | - | | 0 years |
| A. Dominique | C | Minor-League-Contract | - | - | | 0 years |
| J. Gamble | SP | Minor-League-Contract | - | - | | 0 years |
| R. Garcia | MR | Minor-League-Contract | - | - | | 2 years |
| A. Martinez | SP | Minor-League-Contract | - | - | | 0 years |
| P. Seibel | MR | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| M. Duff | MR | Minor-League-Contract | - | - | | 1 years |
| K. Huang | CL | Minor-League-Contract | - | - | | 0 years |
| C. Febles | 2B | Minor-League-Contract | - | - | Minor League FA next year! | 6 years |
| R. Hoyt | C | Minor-League-Contract | - | - | | 0 years |
| A. Alvarez | SP | Minor-League-Contract | - | - | | 0 years |
| C. Arias | 3B | Minor-League-Contract | - | - | | 0 years |
| J. Cedeno | SP | Minor-League-Contract | - | - | | 0 years |
| M. Declarmen | SP | Minor-League-Contract | - | - | | 0 years |
| H. Garcia | SP | Minor-League-Contract | - | - | | 0 years |
| M. Hall | CF | Minor-League-Contract | - | - | | 0 years |
| J. Hattig | 3B | Minor-League-Contract | - | - | | 0 years |
| J. Lester | SP | Minor-League-Contract | - | - | | 0 years |
| B. Marshall | MR | Minor-League-Contract | - | - | | 0 years |
| A. Mateo | MR | Minor-League-Contract | - | - | | 0 years |
| M. Murton | RF | Minor-League-Contract | - | - | | 0 years |
| K. Ool | MR | Minor-League-Contract | - | - | | 0 years |
| J. Owens | CF | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| J. Papelbon | MR | Minor-League-Contract | - | - | | 0 years |
| J. Perez | MR | Minor-League-Contract | - | - | | 0 years |
| H. Ramirez | SS | Minor-League-Contract | - | - | | 0 years |
| J. Sherrod | RF | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| J. Hernandez | LF | Minor-League-Contract | - | - | | 0 years |
| E. Snyder | 1B | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| C. Spann | 3B | Minor-League-Contract | - | - | | 0 years |
| B. Vaughn | MR | Minor-League-Contract | - | - | | 0 years |
| J. West | 1B | Minor-League-Contract | - | - | | 0 years |
| C. Zink | SP | Minor-League-Contract | - | - | | 0 years |
| D. Murphy | LF | Minor-League-Contract | - | - | | 0 years |
| J. Shiell | MR | Minor-League-Contract | - | - | | 2 years |
| J. Kalinowski | SP | Minor-League-Contract | - | - | | 1 years |
| B. Hebson | MR | Minor-League-Contract | - | - | | 1 years |
| J. Bailey | 1B | Minor-League-Contract | - | - | | 1 years |
| M. Campo | RF | Minor-League-Contract | - | - | | 1 years |
| J. Medrano | 2B | Minor-League-Contract | - | - | | 1 years |
| P. Rigdon | SP | Minor-League-Contract | - | - | | 1 years |
| L. DiNardo | SP | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| B. Jones | MR | Minor-League-Contract | - | - | | 1 years |
| T. Hamulack | MR | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| F. Castillo | SP | Minor-League-Contract | - | - | | 1 years |
| G. Lombard | RF | Minor-League-Contract | - | - | Minor League FA next year! | 4 years |
| S. Cassidy | MR | Minor-League-Contract | - | - | | 1 years |
| M. O'Keefe | 1B | Minor-League-Contract | - | - | | 1 years |
| B. Thomas | SP | Minor-League-Contract | - | - | | 2 years |
| H. Stanley | CF | Minor-League-Contract | - | - | Minor League FA next year! | 0 years |
| B. Kelley | 3B | Minor-League-Contract | - | - | | 0 years |
| R. Schroyer | SP | Minor-League-Contract | - | - | | 1 years |
| O. Meredith | SP | Minor-League-Contract | - | - | | 1 years |
| P. Perry | C | Minor-League-Contract | - | - | | 1 years |
| A. Dobies | SP | Minor-League-Contract | - | - | | 1 years |
| T. Hottovy | SP | Minor-League-Contract | - | - | | 1 years |
| A. Stolte | C | Minor-League-Contract | - | - | | 0 years |
| D. Whaley | 1B | Minor-League-Contract | - | - | | 0 years |
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