Scott Humphries and Mark Merklein were the defending champions but lost in the final 6–2, 6–4 against Todd Perry and Thomas Shimada.
Seeds
Gastón Etlis / André Sá (first round) Scott Humphries / Mark Merklein (final) Nathan Healey / Jordan Kerr (first round) Martín García / Graydon Oliver (semifinals)
Draw
External links 2003 Brasil Open doubles draw