Landscape lighting or garden lighting refers to the use of outdoor illumination of private gardens and public landscapes; for the enhancement and purposes of safety, nighttime aesthetics, accessibility, security, recreation and social and event uses.

The public landscape and gardens have been illuminated for as long as interior structures have; for security, circulation, and social occasions; since ancient times by firelight from wood, candles, and animal-plant oil fuels in torches, sconces and lanterns. Since the 19th century's introductions of new interior illumination fuels, the technology has then been used outdoors and in gardens.