Bruce Arthur Johnston (born Benjamin Baldwin; June 27, 1942) is an American singer, musician and songwriter who is a member of the Beach Boys. He also collaborated on many records with Terry Melcher (his bandmate in Bruce & Terry, the Rip Chords, and California Music) and composed the 1975 Barry Manilow hit, "I Write the Songs".

Born in Illinois, Johnston grew up in Los Angeles and studied classical piano in his early years. While in high school, he arranged and played on his first hit record, Sandy Nelson's "Teen Beat" (1959), and also worked with musicians such as Kim Fowley and Phil Spector. One of Johnston's first gigs was as a member of the surf band the Gamblers before becoming a staff producer at Columbia Records.