A face portion of a head includes a striking face constituting an outer surface of the face portion, a face inner surface constituting an inner surface of the face portion, and a face thickness. The striking face includes a face center. The face portion includes: a face central thin-wall section including the face center; a toe thick-wall section thicker than the face central thin-wall section, positioned spaced 8 mm or more apart from the face center toward a toe side, and extending in an up-down direction; and a heel thick-wall section thicker than the face central thin-wall section, positioned spaced 8 mm or more apart from the face center toward a heel side, and extending in the up-down direction. The toe thick-wall section and the heel thick-wall section extend to a position that does not reach an outer edge of the face portion.