John Halsey (born 23 February 1945) is an English rock drummer, best known for his appearance in the television film All You Need is Cash (1978) as Barrington Womble ("Barry Wom") of The Rutles.

He joined the London rhythm and blues band Felder's Orioles in 1965, who released four singles on the Piccadilly Records label.

[2] In 1972, Halsey played drums on the Lou Reed album Transformer and recorded as a session musician on albums including Mind Your Own Business by Henry McCullough (1975), Back to the Night by Joan Armatrading (1975), Bullinamingvase by Roy Harper (1977), Woman in the Wings by Maddy Prior (1978), and Mail Order Magic by Roger Chapman (1980).

[4] In an interview for the magazine Ptolemaic Terrascope in 1992, he said that he spent much of the 1980s selling fish from the back of a van after a near-fatal accident in Chichester in 1983 and that since then, he has been in the pub trade.

He remains musically active, playing drums and singing with the Peg Leg Pub Band, a nine-piece ensemble he formed in the summer of 2022.