Abstract: Theft-deterrent lock protector apparatus generally encloses and mechanically restricts access to locks which restrict access to receptacles, containers, and/or materials of value, thus providing a second level of security to such receptacles, containers, and/or materials. Such receptacles, containers, and materials include shipping containers, truck bodies, enclosed trailers, and hitch receptacles. Such locks include padlocks, shackle locks, U-locks, hasps, trailer latches, trailer clasps, trailer tongues, receiver hitches, and receiver pins. The locking enclosure apparatus restriction enables a user to secure various objects with such locks and lock protectors while mitigating deleterious and/or nefarious tool access to the locks themselves.