Nobuaki Kakuda (Japan, Kakuda Nobuaki, born April 11, 1961 in Sakai, Osaka Prefecture) is a Japanese Seido Kaikan - Karate fighter, who is famous for his first punch knockout win over German 4-time cage combat World Champion Mavrick at 0:56 seconds in the K-1 Fields Europe GP 2005 as well as currently being the only K-1 fighter to lose to Akebono, a former Sumo wrestler whose long losing streak has made him a laughingstock of MMA.

He is also one of the K-1 organization's regents. He is currently the oldest and shortest (174 cm) partcipant in the K-1 tournaments. He also works as a referee-in-charge and as a ringside judge in these events.