Mahmudiye was a ship of the line of the Ottoman Navy. She was a three-masted three-decked 128-gunned sailing ship, which could perhaps be considered to be one of the few completed heavy-first rate battleships. Mahmudiye, with a roaring lion as the ship's figurehead, was intended to serve to reconstitute the morale of the nation after the loss of the fleet at the Battle of Navarino in 1827. The flagship was for many years the largest warship in the world. She was decommissioned in 1874 and broken up at the Imperial Shipyard.