Locked in

Locked in or lock in may refer to:

• Locked In (album), an album by Wishbone Ash
• "Locked In" (House), a television episode
• "Locked In" (song), a song from the album Turbo by the Judas Priest
• Locked In (film), a 2010 independent thriller/drama film
• Lock-in (pub), a situation where a pub owner allows patrons to stay past closing time
• Locked-in syndrome, a medical condition
• Locked in period, a term related to stock trading
• Lock-in (decision-making)
• Lock-in amplifier, a type of amplifier
• Vendor lock-in, an economics term
• A variant of a lockout in industrial disputes
• A type of slumber party, often organized by American schools, where children are "locked in" (not allowed to leave) until the next morning