Terrence P. "Terry" Melcher (born Terrence P. Jorden, February 8, 1942 – November 19, 2004) was an American musician and record producer, who was instrumental in shaping the California Sound and American West Coast rock music, particularly during the nascent counterculture era. He was the only child of actress/singer Doris Day; his father was Day's first husband Al Jorden.
His major contributions were producing the Byrds' recordings of "Mr. Tambourine Man" and "Turn! Turn! Turn!". In the 1960s, Melcher was acquainted with the Beach Boys, helping connect Brian Wilson to Smile lyricist Van Dyke Parks. Melcher later produced several singles for the Beach Boys between the 1980s and the 1990s, including "Kokomo" (1988), which topped US record charts. In 1968, Dennis Wilson's associations with convict Charles Manson made Melcher a target of Manson's murder conspiracy.