The Underwater Hockey World Championship is the peak international event for the underwater sport of Underwater Hockey.
The event is conducted on behalf of the Confédération Mondiale des Activités Subaquatiques (CMAS) by an affiliated national federation.
The championship was first held in 1980 in Vancouver, Canada
World championship has been held every two years in locations around the world up until 2006.
WAA was founded by CMAS national federations in dispute with CMAS over policy and governance matters concerning underwater hockey.
Since 2008 CMAS has once again administered all the world championship events in various age/gender divisions with the most recent having been held in Eger in Hungary in 2013.