Katsuji Ueda (上田 勝次, Ueda Katsuji, December 15, 1945–April 20, 2017) was a Japanese kickboxer, martial artist and professional wrestler, best known for his time with Frontier Martial-Arts Wrestling (FMW) between 1990 and 1995. He was usually utilized in martial arts fights during his FMW career and won the promotion's World Light Heavyweight Championship three times. He was also a bodyguard for Atsushi Onita.