Abstract: A locking electrical outlet box is positioned over one or a pair of electrical wall outlets having a conventional apertured face plate secured to the wall. The box includes an apertured bottom wall for registry with the wall outlets with the face plate removed and for fastening the box upon the wall and the face plate applied to the bottom all. The box includes a cover hinged thereon with an apertured latch bar and one or a pair of outwardly opening slots adapted to receive an electric cord from an appliance terminating in a plug. A key lock is anchored upon the box and includes a rotatable latch registerable with the latch bar.