Sachio Sakai (堺 左千夫, Sakai Sachio, 8 September 1925 – 11 March 1998), born Yukio Abe (阿部 幸男, Abe Yukio), was a Japanese actor. In 1947, he made his film debut with Akira Kurosawa's One Wonderful Sunday. He often worked with Akira Kurosawa and Kihachi Okamoto.