An operating device includes a knob, which is formed into a rod form, and a resilient body, which is formed into a ring form. Position limiting parts, which limit a position of the resilient body, include at least one primary rib, which is placed on one side of the resilient body in a longitudinal direction of the knob, and at least one secondary rib, which is placed on another side of the resilient body in the longitudinal direction of the knob. The at least one primary rib and the at least one secondary rib radially outwardly project from the outer peripheral portion of the knob within an extent that does not extend beyond the resilient body.