John Piper may refer to:
- John Piper (artist) (1903â€"1992), English painter and printmaker
- John Piper (author) (born 1953), English author and market analyst
- John Piper (broadcaster), BBC radio host
- John Piper (military officer) (1773â€"1851), lieutenant-governor of Norfolk Island
- John Piper (theologian) (born 1946), Calvinistic Baptist pastor and author
