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:
“Now John wore clothing of camel’s hair with a leather belt around his waist, and his food was locusts and wild honey.”
—Bible: New Testament, Matthew 3:4.
“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)