Shamu was the stage name used for several performing orcas at SeaWorld as part of their theatrical Shamu show beginning in 1960s. The original Shamu died in 1971, but the name was trademarked by SeaWorld, and has been given to different orcas over the years.

SeaWorld is an American theme park chain with headquarters in Orlando, Florida. It is a proprietor of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers owned by United Parks & Resorts. The parks feature orcas, sea lion, and dolphin shows and zoological displays featuring various other marine animals.