Peter Bruce Watson (born 30 May 1947) is an Australian politician. He was the Labor Party member of the Western Australian Legislative Assembly from February 2001 to March 2021, representing the electorate of Albany. Employed at Australia Post, Watson held various positions, including postal manager, before entering politics. He was successful at the 2001 Western Australian state election, defeating the sitting member, Kevin Prince, and was re-elected in 2005.