Lock is a surname, and may refer to:
Bob Lock (born 1949), Welsh science fiction and fantasy writer Charles Lock (1770–1804), British consul-general in Naples who quarrelled with Admiral Horatio Nelson regarding the latter's military actions Charlie Lock (born 1962), Zimbabwean cricketer C. N. H. Lock (1894–1949), English aerodynamicist David Lock (born 1960), barrister and Labour Party politician in the United Kingdom Don Lock (1936–2017), Major League Baseball outfielder Drew Lock (born 1996), American football quarterback Édouard Lock (born 1954), Canadian dance choreographer Emily Lock (born 2007), British gymnast Eric Lock (1919–1941), British Royal Air Force fighter ace of the Second World War Herbert Lock (1887–1957), English goalkeeper who played for Southampton and Rangers James Lock (sound engineer) (1939–2009), English two-time Grammy Award winner in the area of classical music James Lock, an early owner (from 1759) and head of James Lock & Co., hatters in London John Bascombe Lock (1849–1921), bursar of Gonville and Caius College, Cambridge Matthias Lock, English 18th-century furniture designer and cabinetmaker Mi Kwan Lock, French actress Patti Frazer Lock (born 1953), American mathematician and statistician Ray Lock, a Royal Air Force air vice-marshal Robert Heath Lock (1879–1915), English geneticist Sean Lock (1963–2021), English comedy writer, comedian and actor Tony Lock (1929–1995), English Test cricketer Trevor Lock (born 1973), English comedian, actor and playwright Ulla Lock (1934–2012), Danish film actress
See also Locke (surname) George Locks (1889–1965), English cricketer