Admiral Thomas may refer to:
Cari Batson Thomas (fl. 1980s–20210s), U.S. Coast Guard rear admiral Charles Thomas (Canadian admiral) (born 1936), Royal Canadian Navy vice admiral Charles Mitchell Thomas (1846–1908), U.S. Navy rear admiral Charles W. Thomas (captain) (1903–1973), U.S. Coast Guard rear admiral Chauncey Thomas Jr. (1850–1919), U.S. Navy rear admiral David M. Thomas Jr. (born 1958), U.S. Navy rear admiral Davyd Thomas (born 1956), Royal Australian Naval Reserve rear admiral Gerald Eustis Thomas (1929–2019), U.S. Navy rear admiral Karl O. Thomas (born 1963), U.S. Navy vice admiral Paul F. Thomas (born 1963), U.S. Coast Guard vice admiral Richard Thomas (Royal Navy officer) (1932–1998), British Royal Navy admiral Richard Darton Thomas (1777–1857), British Royal Navy admiral William Nathaniel Thomas (1892–1971), U.S. Navy rear admiral