"Daydream" is a popular song written by John Sebastian, published in 1966. The song was originally recorded that year by Sebastian's group The Lovin' Spoonful and released on their album of the same title.

The song both reached No. 2 on the U.S. Billboard Hot 100 and on the UK Singles Chart. In New Zealand, the song spent three weeks at No. 1. It also reached No. 1 in Canada, and No. 13 in Australia. "