World heavyweight championship

World heavyweight championship may refer to:
 * World heavyweight boxing championship (professional)
 * World Colored Heavyweight Championship (early twentieth-century)
 * World heavyweight championship (professional wrestling)
 * AAA Mega Championship
 * AWA World Heavyweight Championship
 * CMLL World Heavyweight Championship
 * ECW World Heavyweight Championship
 * GHC Heavyweight Championship
 * Impact World Championship
 * IWGP Heavyweight Championship
 * IWGP World Heavyweight Championship
 * NWA Worlds Heavyweight Championship
 * NXT Championship
 * ROH World Championship
 * Triple Crown Heavyweight Championship
 * WCW International World Heavyweight Championship
 * WCW World Heavyweight Championship
 * World championships in WWE
 * World Heavyweight Championship (WWE, 2002–2013)
 * World Heavyweight Championship (WWE, 2023–present)
 * World Zero Heavyweight Championship (Zero1)
 * World Heavyweight Wrestling Championship (original version)
 * WWE Championship
 * WWE Universal Championship
 * MLW World Heavyweight Championship
 * AEW World Championship


 * Mixed martial arts:
 * Bellator Heavyweight World Championship
 * Pancrase Heavyweight Championship
 * PRIDE Heavyweight Championship
 * Shooto Heavyweight Championship
 * UFC Heavyweight Championship
 * Boxing:
 * List of IBF world champions
 * List of IBO world champions
 * List of The Ring world champions
 * List of WBA world champions
 * List of WBC world champions
 * List of WBO world champions
 * List of world heavyweight boxing champions

The following world championships also have weight divisions:
 * AIBA World Boxing Championships
 * Karate World Championships
 * Kickboxing world heavyweight championships
 * World Jiu-Jitsu Championship
 * World Judo Championships
 * World Rowing Championships
 * World Taekwondo Championships
 * World Wrestling Championships (amateur)