To provide a cam clutch that allows use of the outer race as a rotating member without requiring a complex structure, and that allows a size reduction in the axial direction. The cam clutch includes an operating mode switch mechanism (140) for switching between two or more of a free state that allows relative rotation in both directions, a one-way clutch mode that allows relative rotation in one of forward and reverse directions, and a locked state that prohibits relative rotation in both directions. The operating mode switch mechanism (140) includes a cam orientation changing part (141) axially movable independently of rotation of the inner race (110) and the outer race (120). A plurality of cams (131) include an engaging portion (136) protruding from a side face toward the cam orientation changing part (141).