A golf club head having a hollow structure including a club face having a toe-side extreme end and a heel-side extreme end between which a club face maximum width Wf is defined; and a rear part being rear of the club face and having a toe-side extreme end and a heel-side extreme end (excepting a hosel portion) between which a head maximum width Wh is defined, wherein a ratio (Wh/Wf) of the head maximum width Wh to the club face maximum width Wf is more than 1.0, but not more than 1.5 and the distance of the toe-side extreme end of the rear part and the distance of the heel-side extreme end of the rear part are not more than 0.2 times the distance of a front-side extreme end of the head, each distance measured in the back-and-forth direction of the head from a rear-side extreme end of the head, whereby the weight is distributed toward the toe, heel and rear of the head, and the depth of the center of gravity and the moment of inertia can be increased.