Tsunehiko Watase (July 28, 1944 – March 14, 2017) was a Japanese actor. He is best known for portraying Rintaro Kano in Keishicho Sosa Ikka 9 Gakari ("Homicide Team 9"). He won Best Supporting Actor at the 2nd Japan Academy Prize for The Incident and at the 3rd Hochi Film Award for The Incident, Kōtei no inai hachigatsu and The Fall of Ako Castle.