Megan Williams (11 September 1956 – 17 April 2000) was an Australian actress and singer, who played a continuing role as Alice Sullivan in the television drama The Sullivans, and won a Logie Award for her work in Anzacs (1985).

Williams was born in London, England to David and Chin Yu Williams who appeared in a West End production of South Pacific. At six months old, Williams had a minor TV role as an abandoned baby on The Adventures of Robin Hood (1957). Williams' family moved to Sydney, New South Wales, Australia where she pursued an acting career.