An object is to provide a lens device that can share a cable and can prevent the unnecessary exposure of the cable, and an imaging apparatus that includes the lens device. A lens device according to an embodiment of the invention, includes a lens barrel, a control unit that is provided on the lens barrel so as to protrude, a cable of which one end is mounted on the control unit and the other end is connected to the imaging apparatus main body, a plurality of length regulating members that are provided, in a longitudinal direction of the cable, and a housing portion in which the cable is housed and which is provided with an opening through which the cable is led out. Any one of the plurality of length regulating members is fitted to the opening, so that a lead-out length of the cable is changed.