“Sundown” is a song by Canadian folk artist Gordon Lightfoot. Released as a single in March 1974, it reached No. 1 on the U.S. Billboard Hot 100 and easy listening charts, as well as No. 13 on the Hot Country singles chart. The song is featured on Lightfoot’s ninth studio album, also titled “Sundown,” released in 1974. This album was his only one to reach No. 1 on the pop chart in the US.

The lyrics depict a troubled romantic relationship, often associated with Cathy Smith. In the early ’70s, Lightfoot’s marriage was crumbling, and he moved in with Smith for about three years. The enduring appeal of “Sundown” lies in its mysterious allure, uncertainty of love, and the siren song of betrayal.