William Tibertus McCarty, C.Ss.R. (August 11, 1889 – September 14, 1972) was an American prelate of the Roman Catholic Church. A Redemptorist, he served as bishop of the Diocese of Rapid City in South Dakota from 1948 to 1969. He previously served as an auxiliary bishop of the Archdiocese for the Military Services, USA, from 1943 to 1947.