Nicholas Brewer Thoman (born March 6, 1986) is an American competition swimmer who specializes in the backstroke and is an Olympic gold medalist.

[3] He swam for Cincinnati Aquatic Club under head coach Benson Spurling from age 8 through high school.

At the 2009 Duel in the Pool, a short course meet, Thoman combined with Mark Gangloff, Michael Phelps, and Nathan Adrian in 4×100-meter medley relay to break the world record previously held by Canada.

[8] At the 2010 FINA Short Course World Championships in Dubai, Thoman won a gold medal in the 4×100-meter medley relay with Mihail Alexandrov, Ryan Lochte, and Garrett Weber-Gale.

In the 4×100-meter medley relay with Mark Gangloff, Michael Phelps, and Nathan Adrian, Thoman won gold with a time of 3:32.06.