Provided is a golf club head in which the lateral moment of inertia can be increased through thickness adjustment of the sole portion. The golf club head according to the present invention includes a crown portion, a sole portion and a face portion. The sole portion includes a first thin-walled portion and a first thick-walled portion that extends from the toe side of the first thin-walled portion to the heel side of the first thin-walled portion via the back side, so as to surround the first thin-walled portion, and is thicker than the first thin-walled portion.