A bottle opener for a closure cap for a bottle neck, includes a hood equipped with a first hook including a contact surface with a lower surface of the closure cap, and a transmission lever hinged onto the hood and provided with a gripping section and a working section able to come to bear against an upper surface of the closure cap. It is also provided with two other hooks which include a contact surface with the lower surface and which are offset in the circumferential direction on both sides of the position diametrically opposite the first hook, by an angle of less than 90°, typically ranging between 40° and 80°, and preferably ranging between 40° and 50°.