"Suspicion" is the fourth and final single released by R.E.M. from their album Up. Unlike previous singles from Up, "Suspicion" was the only single from the album not to chart.
A live version of the song, recorded at Toast Studios in San Francisco, CA 1998, was released as a B-side to the second single from Up, "Lotus", released the following year and peaked at #26 on the UK Singles Chart. This version was included in the German releases of the CD.