TheUnderwater Orienteering World Championships is the peak international event for theunderwater sport ofunderwater orienteering. The event is conducted on behalf of theConfédération Mondiale des Activités Subaquatiques (CMAS) by an affiliated national federation. Thechampionships was first held in 1973. Currently, it is held every 2 years on years ending with an odd number.
| Year | Date | Championship | Location event | # Teams | # Events |
|---|---|---|---|---|---|
| 1973 | September 12 – 17 | 1st World Championship |  Lokve,Yugoslavia[1] | 15 | |
| 1985 | August 3 – 8 | 2nd World Championships |  Neuglobsow,DDR[2] | 15 | |
| 1987 | August 4 – 10 | 3rd World Championships |  Leningrad,USSR[3] | 15 | |
| 1989 | September 10 – 19 | 4th World Championships | Fuzine,Yugoslavia[4] | 16 | |
| 1992 | September 20 – 26 | 5th World Championships |  MaltchacherAustria[5] | 18 | |
| 1994 | September 3 – 10 | 6th World Championships |  Lake Czarlina,Poland[6] | 14 | |
| 1996 | August 10 – 14 | 7th World Championships |  Pühajärve,Estonia[7] | 11 | |
| 1998 | September 1 – 5 | 8th World Championships |  Lake RukkelHungary[8] | 13 | |
| 1998 | September 19 – 25 | 9th World Championships |  Lake Tribalj,Croatia[9] | 15 | |
| 10th World Championships | |||||
| 11th World Championships | |||||
| 12th World Championships | |||||
| 2007 | 13th World Championships | ||||
| 2009 | August 26 – September 2 | 14th World Championships | Gyekenyes, Hungary,[10][11] | ||
| 2011 | September 10 – 17 | 15th World Championships |  Lake Stoeritzsee,Berlin,Germany[12] | 12 | |
| 2013 | August 5 – 8 | 16th World Championships |  Kazan,Russia[13] | 12 |
As of April 2013, the details of the next World Championships had not been announced.
