If Not for You is the debut studio album by British-Australian singer-songwriter Olivia Newton-John, released in November 1971 by Festival Records. The album was released on the Pye International label in the UK as Olivia Newton-John, with a slightly different cover.

The album was her first album released by Festival Records, which would release all her albums in Australia until its dissolution in 2005. It also has Newton-John's first works with her long-time musical partner, John Farrar.

As a covers album, If Not for You features mostly songs previously recorded from contemporary artists of the 1960s and early 1970s.

She made several performances to promote If Not for You and her follow-up album, Olivia, including an international tour with British singer Cliff Richard.

In 1966, Newton-John released her debut single, a cover of Jackie DeShannon's "Till You Say You'll Be Mine" (with "For Ever" as B-side), by Decca Records. Later, she integrated the band Toomorrow, which released a film and its soundtrack in 1970. After these failed attempts to launch her career, she signed with Festival Records to release an album.

If Not for You was titled after its successful lead single of the same name and was recorded in London, where Newton-John resided at the time. She later stated that she didn't like the song, but praised its production.

The majority of musicians who played on If Not for You were linked with the music group Marvin, Welch & Farrar. The group members John Farrar and Bruce Welch produced the album. Welch was her boyfriend at the time and Farrar is the husband of Australian singer Pat Carroll, a personal friend of Newton-John's, and toured with her in England at clubs and bars as "Pat and Olivia" in 1966.

Farrar would establish a partnership with Newton-John, producing all her studio albums from If Not for You until Soul Kiss, released in 1985. He also composed, played and did background vocals on several Newton-John songs.