Ocean World can mean several things:

Ocean world, an astronomical body possessing a significant amount of water

• Hycean planet, an astronomical body covered in water with a hydrogen atmosphere

• Oceanworld Manly, a theme park

• "Ocean World" is an episode of The Blue Planet

• Ocean World (water park), a water park in South Korea

• Ocean World, an aquarium in Crescent City, California

• Ocean Worlds Exploration Program at NASA

See also

• Ocean (disambiguation)

• Ocean Park (disambiguation)

• Marine World (disambiguation)

• Sea World (disambiguation)

• Water planet (disambiguation)

• Water World (disambiguation)

• Aqua Planet (disambiguation)

• World Ocean