The 2004 Chennai Open was a men's tennis tournament played on outdoor hard courts at the SDAT Tennis Stadium in Chennai in India, part of the International Series of the 2004 ATP Tour. It ran from 5 January through 11 January 2004. First-seeded Carlos Moyá won the singles title while Rafael Nadal and Tommy Robredo took the doubles.
Carlos Moyá defeated Paradorn Srichaphan 6âÂÂ4, 3âÂÂ6, 7âÂÂ6<sup>(7âÂÂ5)</sup>
Rafael Nadal / Tommy Robredo defeated Jonathan Erlich / Andy Ram 7âÂÂ6<sup>(7âÂÂ3)</sup>, 4âÂÂ6, 6âÂÂ3