A waterproof case for an electronic device includes a case portion configured to house an electronic device including a touch panel display, and an operation mechanism provided to the case portion and configured to operate the touch panel display of the electronic device, which is housed in the case portion, from an outside of the case portion. In the waterproof case, the operation mechanism includes a push button, a return spring configured to energize the push button toward the outside of the case portion, a moving lever configured to move in a pressing direction when the push button is pressed toward an inside of the case portion, and an operation lever configured to rotate in a direction approximately orthogonal to the pressing direction so as to bring a contact portion into contact with a predetermined region of the touch panel display when being pressed by the moving lever.