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

Admiral Thomas