Sea lion (disambiguation)
A sea lion is an aquatic mammal generally found in shallow waters.
Sea Lion, Sealion, Sea-lion, or Sea Lions may also refer to:
Music
- Sea Lion (album), by The Ruby Suns, 2008
 - "Sea Lion" (song), by Sage Francis, 2005
 
Military
- Operation Sea Lion, the planned German invasion of Great Britain during World War II
 - Operation Sea Lion (wargame), a 1974 wargame to test the World War II scenario
 - HMS Sealion, two submarines and one land base of the British Royal Navy
 - USS Sealion, two U.S. Navy submarines
 - NH90 Sea Lion, the German Navy variant of the NHIndustries NH90 helicopter
 
Places
- Sea Lion Glacier, Antarctica
 - Sea Lion Tarn, a tarn (mountain lake or pool) adjacent to the glacier
 - Sea Lion Caves, Oregon, United States
 - Sea Lion Island, one of the Falkland Islands
 - Sea Lion Rock, near Kamchatka Peninsula, Russia
 
Other
- Merlion, official mascot of Singapore
 - The Sea Lion, a 1921 American silent film
 - Sea-lion, in heraldry, a mythical creature consisting of the head and front limbs of a lion with the tail of a fish
 - Supermarine Sea Lion, a series of British racing flying boats
 - Sea Lion (steam locomotive), a steam locomotive on the Groudle Glen Railway
 - Sea Lion (battery-electric locomotive), a 1920s locomotive on the Groudle Glen Railway
 - Sea Lion Park, an amusement park on Coney Island between 1895 and 1903
 - Sealioning, a form of Internet trolling
 - BYD Sealion, a series of SUV
 - Sea Lions of the Galapagos, a 2025 American nature documentary