"Daydream" is a song by the American folk-rock band the Lovin' Spoonful. Written by John Sebastian, it was issued as a single in February 1966 and was the title track of the band's second album, Daydream, released the following month. The song was the Lovin' Spoonful's third consecutive single to enter the top ten in the United States, and it was their best performing to that point, reaching number two. The single's European release coincided with a British and Swedish promotional tour, leading the song to be the band's first major hit outside North America. It topped sales charts in Canada and Sweden, and it was ultimately the band's most successful record in the United Kingdom, where it reached number two.

The Lovin' Spoonful is an American folk-rock band formed in Greenwich Village, New York City, in 1964. The band was among the most popular groups in the United States for a short period in the mid-1960s and their music and image influenced many of the contemporary rock acts of their era. Beginning in July 1965 with their debut single "Do You Believe in Magic", the band had seven consecutive singles reach the Top Ten of the U.S. charts in the eighteen months that followed, including the number-two hits "Daydream" and "Did You Ever Have to Make Up Your Mind?" and the chart-topping "Summer in the City".