Sea-King (translation of the Old Norse term Sǣkonungr), refers to a Viking, pirate chieftain of the early Middle Ages.
Sea King may also refer to:
Aviation Sikorsky CH-124 Sea King, a Canadian version of the SH-3 Sikorsky SH-3 Sea King, an American naval helicopter Westland Sea King, a British licensed version of the SH-3 Supermarine Sea King, a 1920s British flying-boat fighter aircraft
Fiction Sea King (comics), a villainous counterpart of DC Comics' Aquaman, who exists on Earth-Three Seaking (Pokémon), an orange and white, fishlike, water-type Pokémon Sea King (One Piece), a "One Piece" animal
Other uses Poseidon, the god of the sea in Greek mythology Sea King, the original name of CSS Shenandoah "The Sea King", a song by Hawkwind from their 1985 album The Chronicle of the Black Sword Indonesian coelacanth, also known as the king of the sea