Rentaro Mikuni (?? ???, Mikuni Rentaro) (also sometimes credited ?????; ; January 20, 1923 – April 14, 2013) was a Japanese film actor from Gunma Prefecture.
He appeared in over 150 films since making his screen debut in 1951, and won three Japanese Academy Awards for Best Actor, and a further seven nominations.
He also won two Blue Ribbon Awards for Best Actor, in 1960 and in 1989.
The 1987 film Shinran: Path to Purity (??:???), which he wrote and directed, was awarded the Jury Prize at the Cannes Film Festival.