A robot hand includes a finger unit that includes a first knuckle section that is supported to a predetermined base section and a second knuckle section that is supported to the first knuckle section; a drive section that includes a male screw that is rotatable around a predetermined screw axis by a predetermined drive source and a female screw that is screw-coupled with the male screw and moves in an axial direction of the screw axis according to rotation of the male screw, in which the female screw and the first knuckle section are connected to each other so that the first knuckle section moves in association with movement of the female screw; and a link section that connects the first knuckle section and the second knuckle section so that the second knuckle section moves in association with movement of the first knuckle section.