John Molyneux may refer to:
- John Molyneux (VC) (born 1890) recipient of the Victoria Cross
- John Molyneux (footballer) (born 1931) footballer for Liverpool F.C. in the 1950s
- John Molyneux (politician) British socialist writer and Marxist politician
- John Molyneux (died 1588), MP for Nottinghamshire
- John Molyneux (MP for Liverpool), in 1584, MP for Liverpool