A utility vehicle with an air-intake apparatus for an engine. The air-intake apparatus includes an air-intake duct connected to the engine, the air-intake duct extending in a bonnet chamber, and an air cleaner case connected to an air-intake upstream portion of the air-intake duct. The air cleaner case accommodates a tubular filter element. The air cleaner case is arranged so as to be inclined in the bonnet chamber so that a central axis of the filter element is inclined forward.