Underwater sports are a collection of sports that occur in a water-centered environment. Most commonly, underwater sports use equipment such as swimfins and elements of snorkeling, scuba and/or breath-hold. On a whole, underwater sports are minority activities and some sports are not even practiced on a global level. A few examples of underwater sports include scuba, underwater hockey, underwater ice hockey, underwater rugby, and underwater football.

Scuba encompasses a range of diving activities, practiced both on a recreational and professional level. There has been known controversy whether scuba is actually a sport, though communities exists across the world that practice sub-aqua diving.

Underwater hockey, commonly known as Octopush, is a sport played around the world. Enforcing a no-contact rule, the objective of underwater hockey is for two teams to score a point by moving a puck at the bottom of a swimming pool into goals.

Underwater rugby, originally practiced in German diving clubs’ training programs, is played in a pool and goals at the bottom of the pool. Two teams of six players try to score points by placing a negatively buoyant ball into the goa’s metal buckets. Contrary to popular belief, underwater rugby has little in common with the rules of rugby football.

Underwater ice hockey, also known as sub-aqua ice hockey, is a minority extreme sport. It is a variation of ice hockey, though in underwater hockey matches are played underneath frozen pools or ponds. Players wear wetsuits and flippers and use a floating puck to score goals.

Underwater football is similar to underwater hockey and underwater rugby. All three games are played in a swimming pool and use the same snorkeling equipment. The objective of the game is to carry or pass a negatively buoyant ball from one side of the pool to the other, scoring by placing the ball in a gutter.