Rentaro Mikuni (三國 連太郎, Mikuni Rentarō, born January 20, 1923) was a Japanese 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. Kōichi Satō is his son.