"Rhythm of the Rain" is a song performed by The Cascades, released in November 1962. It was written by Cascades band member John Claude Gummoe. On March 9, 1963, it rose to number 3 on the Billboard Hot 100, and spent two weeks at number 1 on Billboard's Easy Listening chart. Billboard ranked the record as the number 4 song of 1963.

In March, 1963, the song was a top 5 hit in the United Kingdom and, in May that same year, was a number 1 single in Ireland. In Canada, the song was on the CHUM Chart for a total of 12 weeks and reached number 1 in March 1963. In 1999 BMI listed the song as the 9th most performed song on radio/TV in the 20th century.

The Cascades' recording was used in the soundtrack of the 1979 film Quadrophenia, and included in its soundtrack album.[5]

The song arrangement features distinctive use of a celesta The sound of rain and thunder are heard at the beginning and at the end of the song.

The lyrics are sung by a man whose lover has left him; the rain falling reminds him 'what a fool' he has been. He rhetorically asks the rain for answers, but ultimately he wishes it would 'go away' and let him cry alone.