Confédération Mondiale des Activités Subaquatiques
| Abbreviation | CMAS |
|---|---|
| Predecessor | CIPS, Comité des Sports Sous-Marins |
| Formation | January 11, 1959 at Monaco |
| Type | |
| Purpose | Underwater sports & sciences, and diver training |
| Headquarters | Rome, Italy |
| Location |
|
Region served | International |
| Membership | National Federations |
Official language | French, English, Spanish |
| Leader | Anna Arzhanova |
Key people | Jacques-Yves Cousteau |
Main organ | General assembly |
| Affiliations | |
| Staff | 5 |
| Website | www.cmas.org |
Confédération Mondiale des Activités Subaquatiques (CMAS; known in English as the World Underwater Federation) is an international federation that represents underwater activities in underwater sport and underwater sciences, and oversees an international system of recreational snorkel and scuba diver training and recognition. Its foundation in Monaco during January 1959 makes it one of the world's oldest underwater diving organisations.