How do you know when you're God?" "When I pray to him I find I am talking to myself.

Peter Barnes may refer to:
Peter Barnes (playwright) (1931–2004) English playwright and screenwriter
Peter Barnes (lighting designer) (born 1955) English lighting designer and show producer
Peter Barnes (entrepreneur) American businessman and environmentalist
Peter Barnes (footballer) (born 1957) English football player
Peter Barnes (Irish republican) (1907–1940) IRA member
Peter Barnes (journalist) senior Washington correspondent for the Fox Business Network
Peter Barnes (minister) Australian Presbyterian minister
Peter Barnes (pilot) (1962–2013) British helicopter pilot
Peter J. Barnes II (born 1928) New Jersey assemblyman
Peter J. Barnes (respiratory scientist)
Peter J.