"She's Out of My Life" is a song written by American songwriter Tom Bahler and performed by American recording artist Michael Jackson. Although it has been claimed that Bahler wrote the song about the late Karen Carpenter, Bahler stated, "The fact is, I had already written that song by the time Karen and I became romantic. That song was written more about Rhonda Rivera... Rhonda and I had been together for two years, and it was after we broke up that I started dating Karen." The song has been covered by a variety of artists, including Patti LaBelle, Ginuwine, 98°, S Club 7, Barbara Mandrell, Daniel Evans, Nina, Willie Nelson, Josh Groban, and Karel Gott.

Jackson's version was released as the fourth single from his 1979 album Off the Wall. It peaked at number 10 on the Billboard Hot 100, marking the first time any solo artist had ever achieved four Top 10 hits from one album. Unlike the album's previous singles, which were all uptempo dance-oriented funk and disco songs, "She's Out of My Life" was an emotional ballad. The song has a tempo of 66 beats per minute, making it one of Jackson's slowest songs. Jackson's vocals on the record were considered by critics to be some of his best.

The demo version of the song, which features Jackson singing with a guitar, was released in the second disc of the album This Is It (2009).

A poignant moment in the song occurs near the end when Jackson begins to break down in tears as he sings the word "life". Given the popular response to his emotional rendition, the song remained in Jackson's live set for many years. Although he had attempted to record the song's last few moments with emotional restraint, after numerous tries he continued to end the rendition the same - by breaking down in tears. Producer Quincy Jones subsequently let Jackson's tearful recording stand:

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