Abstract: An elastic, disposable cover for the head of a stethoscope. The disk-shaped cover is manufactured from latex or other material that is sufficiently elastomeric to allow the cover to be stretched over the stethoscope head during installation, and yet snap back to remain taut after installation and during use of the stethoscope. The outer edge of the disk is preferably rolled, and the disk is preferably pre-shaped in a shallow parabola, to further ease installation and removal. Since the cover may be fit to a wide variety of stethoscope head types, it is much more practical and easier to use than prior stethoscope covers.