Peter Larsen may refer to:
- Peter Laurentius Larsen (1833–1915), Norwegian-American educator and founding president of Luther College
- Peter Orry Larsen (born 1990), Norwegian footballer
- Peter Thal Larsen, Dutch journalist
- Peter Larsen, former Minister for Food, Agriculture and Fisheries of Denmark
- Peter Larsen (media scholar) (born 1943), professor of media studies
- Peter Larsen (wrestler) (1904–1985), Danish Olympic wrestler