Lock(s) may refer to: Common meanings Lock and key, a mechanical device used to secure items of importance Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment Lock (film), a 2016 Punjabi film Lock (Saga of the Skolian Empire), a sentient machine in the novels by Catherine Asaro Lock (waltz), a dance figure Locked (miniseries), Indian web miniseries The Lock (Constable), an 1824 painting by John Constable The Lock (Fragonard) or The Bolt, a 1777 painting by Jean-Honoré Fragonard Locks (album), by Garnet Crow, 2008 People Lock (surname) Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" George Locks (1889–1965), English cricketer Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places Lock, Ohio, an unincorporated community in the United States Lock, South Australia, a small town in the center of the Eyre Peninsula Lock Island, an island in the River Thames in England Lock Island (Nunavut), an island Peel Sound in Nunavut, Canada Sports Lock (rugby league), a player position in rugby league, known as loose forward in the United Kingdom Lock (rugby union), a player position in rugby union Lock, any of several grappling holds in wrestling, judo and other martial arts Technology Computing Lock (computer science), a bookkeeping object used to serialize concurrent access Lock (database), a feature used when multiple users access a database concurrently File locking, describes a mechanism that restricts access to a computer file SIM lock, a restriction on mobile phones to work only in certain countries or with certain providers Other technologies Lock and key, a mechanical device used to secure items of importance Lock (firearm), the ignition mechanism of small arms Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Lock (weapons guidance), missile navigation system's target acquisition fix Fermentation lock, a device in beer and wine making that allows carbon dioxide to escape while not allowing air to enter Rope lock, a device used in theater fly systems Other uses Lock of hair, a piece of hair Dreadlocks, or locks, rope-like strands of hair formed by locking or braiding See also -lock, an Old English suffix Loch, a Gaelic term used in Scotland to describe lakes and other bodies of water Lock and Key (disambiguation) Locke (disambiguation), a common English surname and place name