Abstract: A multi-size pill dispenser comprises an enclosing cabinet within which are formed a plurality of horizontally juxtaposed pill containing hoppers. Each hopper terminates downwardly in a square opening through which the pills can drop by gravity. A slide is reciprocal below each hopper and includes a triangularly shaped window, portions of which can be urged into registry beneath the hopper opening. An adjustable stop is provided to limit the forward movement of the slide relative to the hopper opening whereby the area of the slide triangular window which can be pulled into registry below the hopper opening can be precisely controlled to regulate both the size and number of pills that can be dispensed from each hopper upon each reciprocation of a slide. By adjusting the forward limit of travel of each of the slides, various sizes and types of pills or other articles can be dispensed, one at a time, from the plurality of hoppers.