Locked in

Locked in or lock in may refer to:

Arts and entertainment

 * Locked In (album), a 1976 album by Wishbone Ash
 * "Locked In" (House), an episode of the TV series
 * "Locked In", a 1986 song by Judas Priest from the album Turbo Lover
 * Locked In (2010 film), a 2010 thriller drama
 * Lock In, a 2014 novel by John Scalzi
 * Locked In (2023 film), a 2023 Psychological thriller

Other uses

 * Vendor lock-in, in economics
 * Lock-in amplifier, a type of amplifier
 * Locked-in syndrome, a medical condition
 * Locked in period, in stock trading
 * Lock-in, a variant of a lockout in industrial disputes
 * Lock-in (pub), when a pub owner allows patrons to stay past closing time