An electronic apparatus includes a main body housing, a design panel to be mounted to a front surface of the main body housing, a button which is configured such that an end extends in cantilever fashion from an end portion fixed to the design panel and in which an operation part provided at the end is exposed to the outside through an opening of the design panel, a drain groove, provided around the operation part, whose an end portion in a direction in which the end is tilted due to pressing of the operation part is open, and a drain groove provided in the front surface of the main body housing on the side of the open end portion of the drain groove and leads to the outside of the main body housing.