Katsuaki Susa (須佐 勝明, Susa Katsuaki, born September 13, 1984 in Aizuwakamatsu, Fukushima[2]) is a Japanese boxer who competed at the 2012 Summer Olympics in the flyweight division (– 52 kg).

[3] He is an alumnus of the Toyo University,[2] and is Second lieutenant in the Japan Ground Self-Defense Force.

[4] Susa took the bronze medal twice in the flyweight division at the Asian Games in 2006 and 2010.

[5] In July 2011, he won the gold medal in that division in the 21st President's Cup in Jakarta, Indonesia.

[6] At the 2012 Summer Olympics, Susa competed in the Men's flyweight, but was defeated by the eventual gold medal winner Robeisy Ramírez in the first round.