Leviathan

Leviathan may refer to any of the following:


 * The Leviathan - a giant serpent-like sea monster
 * Leviathan Fish - a type of species living in the Jade Sea
 * Leviathan (Ship) - giant Luxon ship shaped like a fish

Trivia
Leviathans in Guild Wars are inspired by the Leviathan, a Biblical sea monster referred to in the Old Testament.