The present invention provides an iron-type golf club head that is able to increase the amount of backspin while reducing resistance against the ground, and a golf club set. In an iron-type golf club head having a top surface, a sole surface, a toe surface that connects therebetween, and a face surface that hits a ball, the sole surface is provided with a leading surface sloping to a face side and a trailing surface sloping to a back side in a face-back direction, with a visible boundary line extending in a toe-heel direction as an apex.