"Let It Snow! Let It Snow! Let It Snow!", also known as simply "Let It Snow", is a song written by lyricist Sammy Cahn and composer Jule Styne in July 1945. It was written in Hollywood, California during a heat wave as Cahn and Styne imagined cooler conditions.[1][2]

Despite the lyrics making no mention of any holiday, the song has come to be regarded as a Christmas song in North America due to its winter theme, being played on radio stations during the Christmas and holiday season and having often been covered by various artists on Christmas-themed albums. In the Southern Hemisphere, however, it can be played during the winter months of June, July, and August; and in New Zealand, some play it at Matariki.