"Yesterday" is a song by the English rock band the Beatles, written by Paul McCartney and credited to Lennon – McCartney. It was first released on the album Help! in August 1965, except in the United States, where it was issued as a single in September. It remains popular today and, with more than 2,200 cover versions, is one of the most covered songs in the history of recorded music. "Yesterday" was voted the best song of the 20th century in a 1999 BBC Radio 2 poll of music experts and listeners and was also voted the No. 1 pop song of all time by MTV and Rolling Stone magazine the following year.

This arrangement for clarinet quartet includes the following part: Bb Clarinet 1 or Eb Clarinet, Bb Clarinet 2, Bb Clarinet 3 or Eb Alto Clarinet, Bb Bass Clarinet.

It is suitable for classroom, repertoire and recital.