Open water may refer to:
Ice-free openings on a body of water which otherwise has a frozen surface: Lead (sea ice), a large fracture within an expanse of sea ice Polynya, an area of open water surrounded by sea ice Open water (diving), unconfined underwater diving environment, generally with no constraint to a direct vertical ascent to a free surface in contact with the atmosphere.
Arts and entertainment Open Water (album), a 2006 album by the German singer Sascha Schmitz "Open Water", a song by King Gizzard & the Lizard Wizard from Flying Microtonal Banana Open Water (film series), consisting of survival horror-thriller movies centered around individuals stranded in the ocean and susceptible to attacks by sharks. Open Water (film), a 2003 film about a couple that were accidentally left behind by their scuba diving group. Open Water 2: Adrift, a 2006 film about a group of friends who become stranded in the open sea without a means to escape. Open Water 3: Cage Dive, a 2017 film about a group who find themselves stranded in the ocean Open Water (novel), a 2021 novel by Caleb Azumah Nelson Open Waters (The Morning Show), an episode of the American television series The Morning Show
Sporting Open-water diving, underwater diving in a place without artificial boundaries with a directly accessible surface. Open Water Diver, an entry level scuba-diving certification provided by several training agencies Open water jump, an obstacle found in the equestrian sport of show jumping Open water swimming, an activity in which people swim in large, outdoor bodies of water such as oceans, bays, lakes and rivers
Other Open Water, the retail market for water supply and sanitation services for businesses in England