"Just My Imagination (Running Away with Me)" is a song by American soul group the Temptations, written by Norman Whitfield and Barrett Strong. Released on the Gordy (Motown) label, and produced by Norman Whitfield, it features on the group's 1971 album, Sky's the Limit. When released as a single, "Just My Imagination" became the third Temptations song to reach number one on the US Billboard Hot 100. The single held the number one position on the Billboard Pop Singles Chart for two weeks in 1971, from March 28 to April 10. "Just My Imagination" also held the number one spot on the Billboard R&B Singles chart for three weeks, from February 27 to March 20 of that year.

Today, "Just My Imagination" is considered one of the Temptations' signature songs, and is notable for recalling the sound of the group's 1960s recordings. It is also the final Temptations single to feature founding members Eddie Kendricks and Paul Williams. During the process of recording and releasing the single, Kendricks left the group to begin a solo career, while the ailing Williams was forced to retire from the act for health reasons. In 2010, Rolling Stone magazine listed "Just My Imagination" as number 399 on its list of The 500 Greatest Songs of All Time but exited after the 2021 update. The song was covered by the Rolling Stones on their Some Girls album in 1978.