Phil Adamson (born 20 March 1970) is an Australian former professional rugby league footballer who played in the 1990s. He played for the Parramatta Eels (Heritage No. 497), the Penrith Panthers (Heritage No. 325), St Helens (Heritage No. 1089) and the Manly Warringah Sea Eagles (Heritage No. 429), as a prop, second-row or lock.