Harry Peacock (born 1 August 1978) is an English actor. He has appeared on film and on television programmes including Toast of London and The Kennedys. He has also appeared in over 50 theatre productions and operas, commercials, and is the co-writer and co-star with Dan Skinner of the comedy podcast Brian and Roger.
Peacock was born in London, England, the son of the actor and songwriter Trevor Peacock and actress Tilly Tremayne. He appeared alongside his father in a father/son relationship in the UK television series Kingdom. His half-brother is actor and director Daniel Peacock.
Peacock married actress Katherine Parkinson in 2009, and they have two daughters together. Parkinson and Peacock first met in 2003, Parkinson relating, "I met my husband doing a workshop based on the book Heart of A Dog by Mikhail Bulgakov. He was the dog." They both starred in The Kennedys. Peacock has lupus.