A sea lion is a type of eared seal.
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 “Sea Lion”, a song by Yuno Miles, 2026
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 Thalassoleon, an extinct genus of large fur seal