Gary Peter Anthony Waller (born 24 June 1945) is a British Conservative politician.
Waller fought Rother Valley in the February and October 1974 elections, being well beaten by Labour's Peter Hardy each time.
He was originally MP for Brighouse and Spenborough from 1979 until 1983, when after boundary changes abolished the seat, he was elected for nearby Keighley – defeating the Labour incumbent Bob Cryer.
At the 1997 general election, he lost his Keighley seat to Labour's Ann Cryer, widow of Bob Cryer.