According to one embodiment, an electronic device includes a housing and a plurality of ribs. The housing houses at least part of an electronic component. The ribs are arranged along a flat side surface of the electronic component in the housing such that the inner surface of the ribs faces the side surface. The ribs comprises a rib that faces the side surface of the electronic component, and another rib that is located on an edge side of the side surface compared to the rib and more distant from the side surface than the rib.