"Leave a Light On" is a song by American singer Belinda Carlisle, recorded for her third studio album Runaway Horses (1989).

A video was made for the song, directed by Peter Care, which saw Carlisle singing in the desert and in Las Vegas.

In the United States "Leave a Light On" peaked at number 11, affording Carlisle her final US top-twenty hit.

I'm a sucker for thoroughly predictable American rock records with whistleable tunes, chugging guitars, big blustering choruses and words about nothing in particular except for general lovey-doveyness.

[12] In the music video, Carlisle is seen driving through the desert, filling up her car tank at a nearby gas station, singing the song in different outfits, backgrounds and locations, and walking down the metropolitan streets of Las Vegas where she poses for pictures and laughs while sharing moments of levity with tourists.