See main article: 2004 RCA Championships.
Mario Ančić and Andy Ram were the defending champions, but Ančić did not participate this year. Ram partnered Jonathan Erlich, losing in the quarterfinals.
Jordan Kerr and Jim Thomas won the title, defeating Wayne Black and Kevin Ullyett 6–7(7–9), 7–6(7–3), 6–3 in the final.