Peter Buchanan
Peter Buchanan may refer to:
- Peter Buchanan (Royal Navy officer)
- Peter Buchanan (architect), architect, urbanist, writer and exhibition curator
- Peter Buchanan (footballer, born 1915), Scottish football player
- Peter Buchanan (footballer, born 1938), Scottish football player and club president
- Peter Buchanan (judge), judge of the Supreme Court of Victoria, Australia
- Peter Buchanan (rugby union), rugby union player who represented Australia
- Pete Buchanan, a character in ''Hollyoaks''