Terence William 'Blondie' Chaplin (born 7 July 1951) is a musician from Durban, South Africa who first became known to international audiences through his brief stint in the early 1970s as a singer and guitarist for The Beach Boys. Chaplin was also listed as a co-producer, sang lead vocals with fellow South African musician Ricky Fataar (drummer) and composed, with Fataar, "Here She Comes" and "Hold on Dear Brother" on the twenty-third official Beach Boys album, Carl and the Passions – "So Tough", released in 1972. He is known in recent years as a long term backing vocalist, percussionist and acoustic rhythm guitarist for the Rolling Stones on their tours.
Blondie Chaplin, along with drummer Ricky Fataar, joined the Beach Boys when original drummer Dennis Wilson suffered a hand injury that left him unable to play the drums for almost two years. For the Beach Boys, it was a period in which long-time member Bruce Johnston had departed the band, and one-time leader Brian Wilson's participation in the group was very limited. As a result, Chaplin and Fataar joined the Beach Boys as full-fledged members and not merely as backing musicians. Chaplin left the group in 1973 after a dispute with the Beach Boys' management; Fataar remained with the band until the following year.