Steller's sea eagle (Haliaeetus pelagicus) is a large bird of prey in the family Accipitridae found in coastal northeastern Asia and mainly preys on fish and water birds. On average, it is the heaviest eagle in the world, at about , but may be below the harpy eagle (Harpia harpyja) and Philippine eagle (Pithecophaga jefferyi) in some standard measurements. This bird is named after the German naturalist Georg Wilhelm Steller.