An electronic apparatus includes: a panel having at least one of an input section and a display section; a main body configured to retain the panel rotatably; and a retention mechanism configured to retain the panel at a predetermined rotation angle. The retention mechanism includes: a retaining member provided in the main body; a retained member provided on the panel and configured to be retained by the retaining member; an elastic deformation member configured to be connected to the retained member and changeable between a first state in which the elastic deformation member is not elastically deformed and a second state in which the elastic deformation member is elastically deformed; a contact member configured to contact with the elastic deformation member and change the state of the elastic deformation member; and an operating member configured to receive an operation for making the elastic deformation member contact with the contact member.