The conspicuity of a light emitting surface provided along an outer edge of an input member is enhanced. An input device (10) includes an upper cabinet section (41) having an opening formed therein, an input member (20) that has an upper surface to be touched by a user with a finger and that is disposed inside the opening, and a light diffusing member (71) having a light emitting surface (E2) located along an outer edge of the input member (20). The light emitting surface (E2) has a first region (71g) exposed in a gap between an inner edge of the opening of the upper cabinet section (41) and an outer edge of the input member (20) and a second region (71h) positioned on an inner side of the outer edge of the input member (20) and below a peripheral portion (21a) of the input member (20).