Obsession is the seventh studio album by English rock band UFO, released in 1978. This was the final studio album to feature Michael Schenker on lead guitar until he returned to the band in 1993. A single from the album, "Only You Can Rock Me" / "Cherry", was also released in 1978. So too was the band's first three-track EP "Only You Can Rock Me", "Cherry" / "Rock Bottom", reaching No. 50 in the UK. The album was recorded at an abandoned post office in Los Angeles.
EMI's 2008 remastered edition includes three bonus live tracks, and also some writing credits are corrected. In 2024, Chrysalis released a deluxe edition on 2 CD's and 3 LP's. It features new remaster as well as an entire live show from Cleveland, remixed in 2024 for this release.