Supplement

Supplement or Supplemental may refer to:

Health and medicine

 * Bodybuilding supplement
 * Dietary supplement
 * Herbal supplement

Media

 * Supplement (publishing), a publication that has a role secondary to that of another preceding or concurrent publication
 * Supplement (album), by Ai Nonaka
 * The Supplement, a 2002 Polish film
 * In literary theory, an idea of Jacques Derrida from Of Grammatology
 * Supplement, a role-playing or tabletop game expansion pack

Other uses

 * Supplement, one of a pair of supplementary angles, considered relative to the other