Terry Melcher (February 8, 1942 in New York City - November 19, 2004 in Beverly Hills) was an American musician and record producer.

Doris Day was just 17 when she gave birth to Melcher; his father was trombonist Al Jorden , whom she divorced when Melcher was an infant. Day left Melcher with her mother in Ohio as she toured as a big band singer. When she got a foothold in Hollywood, she sent for him. Melcher was later adopted by Day's third husband, producer Martin Melcher, although the two never got along.

Melcher got his start during the surf rock craze. With future Beach Boy Bruce Johnston, they formed Bruce and Terry, and later the Rip Chords, the latter group responsible for the hit "Hey Little Cobra". He became a producer for Columbia Records. He was assinged to a new band, The Byrds. He produced "Mr. Tambourine Man" and "Turn, Turn, Turn", but conflicts with the band got him replaced. He later worked with Paul Revere and the Raiders and the Rising Sons . He performed on the Beach Boys album Pet Sounds and introduced Brian Wilson to Van Dyke Parks in February 1966, beginning their partnership on the ill-fated SMiLE project. He was also a board member of the Monterey Pop Foundation and a producer of the Monterey Pop Festival in 1967.

In 1968, Charles Manson, who was living with his Family in Beach Boy Dennis Wilson's house, auditioned for Melcher, but Melcher declined to sign him. At the time, Melcher and his then-girlfriend actress Candice Bergen were living in a house on Cielo Drive in Los Angeles. They moved out, and Melcher rented the house to Roman Polanski and Sharon Tate. A few months later the house was the site of the brutal murder of Tate and four others by Manson's Family. After Manson was arrested it was widely reported that he had sent his followers to the house to kill Melcher. This was discounted as police established Manson knew Melcher's new address in Malibu. Manson Family member Susan Atkins who admitted her part in the murders, stated to police and before a Grand Jury that the house was chosen as the scene for the murders "to instill fear into Terry Melcher". In this aim, the Family was successful. Prosecutor Vincent Bugliosi described Melcher as the most frightened of the trial witnesses, although Bugliosi told him numerous times that he was not the intended victim.

In the 1970s Melcher again became a producer for the Byrds, but the results were not well recieved; one critic referred to the album Byrdmaniax as "Melcher's Folly". He also worked with the Beach Boys again, co-writing their 1988 hit "Kokomo ".

He also worked as a producer on his mother's television programs The Doris Day Show and Doris Day's Best Friends and helped to run the Doris Day Animal Foundation.

Melcher died at his home of melanoma.