Felix Christiadi Sutanto (born December 24, 1975, in Surabaya) is a retired Indonesian swimmer, who specialized in individual medley events.

[2] He represented Indonesia, along with his twin brother Albert, at the 2000 Summer Olympics, and later received a total of sixteen All-American titles at the NAIA Men's Swimming and Diving Championships, while studying in the United States.

Because of his tremendous career in college swimming, Sutanto was named the 2002 and 2003 Most Outstanding Male Swimmer of the Year by the National Association of Intercollegiate Athletics (NAIA).

Entering the Games with a top-seeded time, Sutanto enjoyed a powerful lead in the first three lengths, but fell short on the freestyle leg to register a fourth-place finish in 2:09.77, almost a 1.9-second deficit from winner Andrei Pakin of Kyrgyzstan.

[10][11] Five years later, at the 2005 SEA Games in Manila, Sutanto helped his teammates Herry Yudhianto, legend Richard Sam Bera, and his twin brother Albert capture a medley relay title in a time of 3:51.51.