A tamper-evident label for a carton having one flap or two opposing flaps includes a pair of end portions each having adhesive or other means for fastening to span the edge of one flap or opposing flaps of the carton. A central area between the end portions defines one or more strips which overlie an edge of one or both flaps. The central area defining the strips is unadhereable to the flaps and are in a condition such that, upon cutting therethrough to form ends on said strips, the ends will be displaced from the strip ends on the opposite sides of the cut.