Katsuaki Fujiwara (born 27 March 1975 in Shimonoseki, Yamaguchi Prefecture, Japan) is a former professional motorcycle racer.
He last competed in the Asia Road Race Championship in the SS600 class aboard a Kawasaki ZX-6R, where he was champion in 2011 and runner-up behind Ryuichi Kiyonari in 2012 and 2013 behind Azlan Shah Kamaruzaman.
He is mostly known for his time spent in the Supersport World Championship, a championship he gained his best result of second overall in 2002.
He has also raced in the Superbike World Championship, and in the All Japan Road Race Championship.