A golf club head includes a cover member, and a club head main body comprising a crown portion, a sole portion and a back-side outer rim portion. The club head main body is made of a first material. The club head main body is provided with a crown opening and a cutout. The cutout is made up of a first opening on the crown portion side and a second opening on the sole portion side, and these opening are connected with each other in the back-side outer rim portion. The width of the cutout and the contour length of the back-side outer rim portion in the top view of the club head are relative with each other. The cover member is made of a second material having a specific gravity lower than the first material. The crown cover closes the crown opening and the first opening. The sole cover closes the second opening.