Masayuki Mori (森 雅之, Mori Masayuki, January 13, 1911 – October 7, 1973) was a Japanese actor and son of novelist Takeo Arishima. Mori appeared in many of Akira Kurosawa's films such as Rashomon, The Idiot and The Bad Sleep Well. He also starred in pictures by Kenji Mizoguchi (Ugetsu), Mikio Naruse (Floating Clouds) and other prominent directors.