Daniel Ketchum (born October 7, 1981) is an American former swimmer and Olympic gold medalist.

At the 2004 Summer Olympics in Athens, Greece, Ketchum earned a gold medal by swimming for the winning U.S. team in the men's 4×200-meter freestyle relay.

[1] Ketchum spent two years in Ireland from 1994 to 1996, where he swam with Limerick Swimming Club and was educated at Villiers School.

He was a member of Michigan's NCAA national championship team in the 800-meter freestyle relay, together with Peter Vanderkaay, Davis Tarwater and Andrew Hurd, in 2004.

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