John Lambert may refer to:
- John Lambert (Protestant 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 (cricketer) (1772–1847), English cricketer
- 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
- John William Lambert (1860–1952), American automotive pioneer
- John Lambert (composer) (1926–1995), British composer and teacher
- Jack Lambert (American football) (John Harold Lambert, born 1952), American football player
- John Lambert (basketball) (born 1953), American basketball player
- John Lambert (naval historian), naval illustrator and author
Famous quotes containing the words john and/or lambert:
“I got it: Man Without Head Kills Rich Jeweler. What an eight- column spread that’d be on the front page. Why that’s the greatest story since Lindbergh flew to Paris. Oh boy, if only it was true.”
—P. J. Wolfson, John L. Balderston (1899–1954)
“Our duty now is to keep alive—to exist. What becomes of a nation if its citizens all die?”
—Dudley Nichols, U.S. screenwriter. Jean Renoir. George Lambert (George Sanders)