John Lambert may refer to:

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  • 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 (civil servant) (1815–1892), British civil servant
  • John Lambert (composer) (1926–1995), British composer and teacher
  • John Lambert (diplomat) (1921–2015), British ambassador
  • John Laurence Lambert (1936–2014), Australian educator and author
  • 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

See also

  • Jack Lambert (disambiguation)