| Bob Bryan
Mike Bryan|| 6–3, 7–6|
| Wayne Arthurs
Paul Hanley|2004 Mercedes-Benz Cup – Doubles Wikipedia
Jan-Michael Gambill and Travis Parrott were the defending champions, but Gambill did not participate this year. Parrott partnered Robby Ginepri, losing in the first round.
Bob Bryan and Mike Bryan won in the final 6–3, 7–6(8–6), against Wayne Arthurs and Paul Hanley.