Bill Barrett (1929–2016) was an American politician.
Bill Barrett may also refer to:
Bill Barrett (artist) (born 1934), American jeweller, painter, and sculptor Bill Barrett (Māori leader) (1878–1953), New Zealand tribal leader, land court agent, and trust board secretary Bill Barrett (outfielder) (1900–1951), American baseball player Bill Barrett (swimmer) (born 1960), American swimmer Bill Barrett (utility player), American baseball player Bill Barrett Corporation, American natural gas and oil exploration and development company
See also William Barrett (disambiguation)