Heavyweight is a weight class in combat sports. It may also refer to:
Heavyweight (MMA), mixed martial arts weight class Heavyweights, 1995 comedy film "Heavyweight", a 2007 song by Infected Mushroom "Heavyweight", a 2023 song by Yeat from Afterlyfe "Heavyweight" (song), a 2011 song by Our Lady Peace Heavyweight, some types of early 20th century North American railway passenger cars, generally having six axles instead of the standard four Heavyweight (podcast), a podcast produced by Pushkin Industries
See also Weight class, in various sports World heavyweight championship (disambiguation)