Abstract: The device of the present invention is a disposable stethoscope cover for an acoustic stethoscope having a single-sided or dual-sided chest piece with two diaphragm ends or a diaphragm end and a bell end. The device has a semi-rigid single piece or multiple piece cover having semi-rigid snap-fit or pressure fit cover elements that fit over the diaphragm and/or bell ends of the stethoscope. In a two sided configuration of the device it has a first and second ends connected by a tether flap. The diaphragm cover elements have an ascending skirt about a majority of said perimeter edge for receiving and securing the semi-rigid flat surface cover element parallel to the diaphragm of the stethoscope and a U-shaped circular ring end to be received and secured to the bell end of the stethoscope.