John Lambert may refer to: John Lambert (martyr) (died 1538), English Protestant martyred during the reign of Henry VIII John Lambert (general) (1619–1684), Parliamentary general in the English Civil War John Lambert of Creg Clare (fl. c. 1645 – c. 1669), Irish soldier and Royalist Sir John Lambert, 1st Baronet (1666–1723), French-born English merchant John Lambert (politician) (1746–1823), U.S. senator from and Acting Governor of New Jersey John Lambert (British Army officer) (1772–1847), British Army general and cricketer John William Lambert (1860–1952), American automotive pioneer John Lambert (composer) (1926–1995), British composer and teacher John Lambert (diplomat) (1921–2015), British ambassador John Lambert (naval historian) (1937–2016), naval illustrator and author Jack Lambert (American football) (John Harold Lambert, born 1952), American football player John Lambert (basketball) (born 1953), American basketball player