Truax is a surname. Notable people with the surname include:
Barry Truax (born 1947), Canadian composerBilly Truax (born 1947), American professional football playerCarol Truax (1899–1986), American music administrator and cookbook authorCharles V. Truax (1887–1935), U.S. Representative from OhioJay Truax, bass player and singer with the band Love SongReuben Eldridge Truax (1847–1935), Canadian businessman and politicianRhoda Truax (1901–2000), American authorRobert Truax (1918–2010), American rocket engineerSarah Truax (1872–1958), American stage actorThomas Truax, American composer, performer and inventor.