Landing lights are indicators of a designated aircraft landing pathway, either on or leading up to a runway, intended to be visible from the air and to guide pilots onto the correct landing course. The usage may apply to the lights or to any object holding them.

The lights indicate the landing course to an approaching pilot. They can be on the runway or along its approach, with the supporting object carrying the same guidance function.

Aircraft traffic signals are usually intended for aircraft moving on the ground. The landing lights provide guidance from the air rather than taxiway traffic commands.