"Owner of a Lonely Heart" is a song by British progressive rock band Yes. It is the first track and single from their eleventh studio album, 90125 (1983), and was released in October 1983. Written primarily by guitarist and singer Trevor Rabin, contributions were made to the final version by singer Jon Anderson, bassist Chris Squire, and producer Trevor Horn.

"Owner of a Lonely Heart" was released in October 1983, as the album's first single. It was a commercial success in the United States, becoming the band's first and only single to reach No. 1 on the Billboard Hot 100 chart and its Hot Mainstream Rock Tracks chart. In 1984, the song was ranked No. 8 on the US year-end chart. The single was reissued various times throughout the 1980s and 1990s with different remix versions and B-sides.