| Doubles | |
|---|---|
| 2004 BellSouth Open | |
| Champions |  Juan Ignacio Chela Gastón Gaudio |
| Runners-up |  Nicolás Lapentti Martín Rodríguez |
| Score | 7–6(7–2), 7–6(7–3) |
Agustín Calleri and Mariano Hood were the defending champions but only Hood competed that year with Lucas Arnold.
Arnold and Hood lost in the quarterfinals to Mariusz Fyrstenberg and Marcin Matkowski.
Juan Ignacio Chela and Gastón Gaudio won in the final 7–6(7–2), 7–6(7–3) against Nicolás Lapentti and Martín Rodríguez.
Lucas Arnold / Mariano Hood (quarterfinals)
František Čermák / Leoš Friedl (semifinals) Martín García / Sebastián Prieto (quarterfinals)
Devin Bowen / 
Ashley Fisher (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | L Arnold M Hood | 2 | |||||||||||||||||||||||||
 G Blanco A Montañés | 0r | 1 | L Arnold M Hood | 77 | 2 | 2 | |||||||||||||||||||||
| D Ferrer R Ramírez Hidalgo | 1 | 4 |  M Fyrstenberg M Matkowski | 65 | 6 | 6 | |||||||||||||||||||||
| M Fyrstenberg M Matkowski | 6 | 6 | M Fyrstenberg M Matkowski | 4 | 2 | ||||||||||||||||||||||
| 3 | M García S Prieto | 6 | 6 | N Lapentti M Rodríguez | 6 | 6 | |||||||||||||||||||||
| WC |  P Capdeville P Harboe | 3 | 4 | 3 | M García S Prieto | 78 | 3 | 1 | |||||||||||||||||||
| N Lapentti M Rodríguez | 7 | 77 | N Lapentti M Rodríguez | 66 | 6 | 6 | |||||||||||||||||||||
 G Kuerten  H Levy | 5 | 63 | N Lapentti M Rodríguez | 62 | 63 | ||||||||||||||||||||||
| WC | H Gamonal A García | 6 | 3 | 1 | J I Chela G Gaudio | 77 | 77 | ||||||||||||||||||||
| J I Chela G Gaudio | 1 | 6 | 6 | J I Chela G Gaudio | w/o | ||||||||||||||||||||||
Ó Hernández  L Horna | 6 | 5 | 77 | Ó Hernández L Horna | |||||||||||||||||||||||
| 4 | D Bowen A Fisher | 2 | 7 | 64 | J I Chela G Gaudio | 6 | 1 | 6 | |||||||||||||||||||
| Á López Morón A Portas | 6 | 6 | 2 | F Čermák L Friedl | 1 | 6 | 3 | ||||||||||||||||||||
| D Sánchez F Saretta | 3 | 3 | Á López Morón A Portas | 3 | 2 | ||||||||||||||||||||||
M Vassallo Argüello  F Volandri | 2 | 3 | 2 | F Čermák L Friedl | 6 | 6 | |||||||||||||||||||||
| 2 | F Čermák L Friedl | 6 | 6 | ||||||||||||||||||||||||
Todd Perry and Thomas Shimada were the defending champions but only Perry competed that year with Jordan Kerr.
Mariusz Fyrstenberg and Marcin Matkowski were the defending champions, but lost in the semifinals to František Čermák and Leoš Friedl.
Michaël Llodra and Fabrice Santoro were the defending champions, and won the final 7–6(4), 6–3 against Bob and Mike Bryan.
Pablo Albano and Lucas Arnold were the defending champions but they competed with different partners that year, Albano with Alexandre Simoni and Arnold with Gastón Etlis.
Gustavo Kuerten and Antonio Prieto were the defending champions but only Prieto competed that year with Álex Calatrava.
Mahesh Bhupathi and Leander Paes were the defending champions but did not compete that year.
Julien Benneteau and Nicolas Mahut won in the final 7–6(7–2), 6–3 against Michaël Llodra and Fabrice Santoro.
Mariano Hood and Sebastián Prieto were the defending champions but they competed with different partners that year, Hood with Lucas Arnold and Prieto with Martín García.
Mark Knowles and Daniel Nestor were the defending champions, but lost in the semifinals this year.
Gastón Etlis and Martín Rodríguez were the defending champions, but did not participate together this year. Etlis did not participate this year. Rodríguez partnered Fernando González and they won the title, defeating Lucas Arnold and Mariano Hood 6–4, 6–4 in the final.
Lucas Arnold and Mariano Hood were the defending champions, but lost in the semifinals this year.
Lucas Arnold Ker and Mariano Hood were the defending champions, but Arnold Ker did not compete this year. Hood teamed up with Martín García and lost in the quarterfinals to Juan Ignacio Chela and Luis Horna.
Karsten Braasch and Sargis Sargsian were the defending champions, but Sargsian did not compete this year. Braasch teamed up with Philipp Kohlschreiber and lost in the semifinals to José Acasuso and Óscar Hernández.
Mahesh Bhupathi and Max Mirnyi were the defending champions, but lost in the quarterfinals to Michaël Llodra and Fabrice Santoro.
Yevgeny Kafelnikov and Sargis Sargsian were the defending champions, but did not compete this year, with Kafelnikov retired at the end of the 2003 season.
Mariusz Fyrstenberg and Marcin Matkowski were the defending champions, but declined to participate to focus for the 2004 Summer Olympics.
Bob Bryan and Mike Bryan were the defending champions, but they competed in Scottsdale this week.
Lucas Arnold Ker and Martín García were the defending champions, but competed this year with different partners. Arnold Ker teamed up with Pablo Albano and lost in quarterfinals to Devin Bowen and Mariano Hood, while García teamed up with Tomás Carbonell and lost in semifinals to Alberto Martín and Eyal Ran.
Martin Damm and Cyril Suk were the defending champions, but lost in the semifinals to Lucas Arnold Ker and Martín García.
František Čermák and Leoš Friedl were the defending champions, but none competed this year.