John Langley
John Langley is the name of the following people:
- John Langley (ice hockey player) (1896–1967), American ice hockey player
- John Langley (film producer) (born 1943), American screenwriter, director and producer
- John Langley (gardener) ( Harald John Langley ; * 1949), German gardener and moderator
- John Newport Langley (1852-1925), British physiologist
- John W. Langley (1868–1932), American politician