Peter Davidson may refer to:
- Peter B. Davidson, General Counsel of the United States Department of Commerce
- Peter Davidson (footballer) (1963–2024), Australian rules footballer
- Peter Wylie Davidson (1870–1963), Scottish sculptor and silversmith
- Pete Davidson (born 1993), American comedian
- "Pete Davidson" (song), Ariana Grande song
- Peter Davidson (1837–1915), Scottish occultist and Freemason Hermetic Brotherhood of Luxor
- Peter Davidson (architect), co-founder of Lab Architecture Studio
- Peter Davidson, comic artist on Desperate Dan
- Peter H. Davidson Jr., state legislator in Florida (African-American officeholders during and following the Reconstruction era)