Jack Hifuo Mizuha (November 5, 1913 – September 7, 1986) was an educator, soldier, and judge. He was a member of the 442nd Infantry Regiment, and served as the Attorney General of Hawaii from 1958 to 1959, a Circuit Court judge from 1959 to 1961, and a justice of the Supreme Court of Hawaii from 1961 to 1968. He was a Republican.