"This Boy" is a song by British rock band The Beatles composed by John Lennon and Paul McCartney, and released in November 1963 as the B-side of the UK Parlophone single "I Want to Hold Your Hand". The Beatles performed it live on 16 February 1964 for their second appearance on The Ed Sullivan Show. It also appears as the third track on side one of US release, Meet the Beatles!
An instrumental version of "This Boy", orchestrated by George Martin, is used as the incidental music during Ringo Starr's towpath scene in the film A Hard Day's Night. The piece, under the title, "Ringo's Theme (This Boy)" was released as a single - but failed to chart in the UK - on 7 August 1964 with "And I Love Her" on the B Side, although it did reach number 53 in the American Top 100 later that year. It was also included on Martins Parlophone album Off The Beatle Track and the EP Music From A Hard Days Night by the George Martin Orchestra, released 19 February 1965. It was also included on the American A Hard Day's Night soundtrack album.