Lock
- -lock
- Airlock
- BanG Dream!
- Fermentation lock
- File locking
- Go! Princess PreCure
- LOCK
- LOCKSS
- Loc (disambiguation)
- Loch
- Lock (Saga of the Skolian Empire)
- Lock (computer science)
- Lock (database)
- Lock (film)
- Lock (firearm)
- Lock (rugby league)
- Lock (rugby union)
- Lock (surname)
- Lock (waltz)
- Lock (water navigation)
- Lock (weapons guidance)
- Lock Island
- Lock Island (Nunavut)
- Lock Martin
- Lock and Key (disambiguation)
- Lock and key
- Lock of hair
- Lock screen
- Lock, Ohio
- Lock, South Australia
- Locke (disambiguation)
- Locked (film)
- Locked (miniseries)
- Locks (album)
- Lok (disambiguation)
- Lox
- Mutha's Day Out
- Ormer Locklear
- Rope lock
- SIM lock
- The Lock (Constable)
- The Lock (Fragonard)
- The Nightmare Before Christmas