John Piper

John Piper could mean:
 John Piper (author) (born 1953), English author and market analyst
 John Piper (artist) (1903–1992), English painter and printmaker
 John Piper (broadcaster), BBC radio host
 John Piper (military officer) (1773–1851), lieutenant-governor of Norfolk Island
 John Piper (theologian) (born 1946), Reformed pastor and author