Operating device mounted on vehicle

An operating device for operating apparatus mounted on the vehicle includes a dial being rotatable, a hand support, and a plurality of switches arranged adjacent to the dial. The apparatus mounted on the vehicle are turned on and off by a user when the switches are operated by the user. A pair of the openings from which operating portions of the dial protrudes are defined on left and right side surfaces of the hand support, respectively. In this way, the occurrence of misoperation is prevented.