Abstract: In order to offer a cup dispenser which does not require to change cylinders to meet with different cup sizes and allows to change cup sizes easily by adjusting a stopper means in accordance with various sizes of cups to be stored, and the cup dispenser is made to be composed of an outer cylinder where cups are stored, an inner cylinder fitted at the cup-outlet side of the outer cylinder and a single or plural number of springs mounted at the above mentioned outer cylinder. The outer cylinder is made of a metallic material, and the inner cylinder is made of a joint-free synthetic resin. A few cup size grooves are etched along a perimeter of the body of the inner cylinder for a free end of a spring stopper held by the above mentioned outer cylinder with the other end to be hooked and released freely. At the same time, a flange placed at the cup-outlet end of the above mentioned outer cylinder has an indication to indicate a few different cup sizes.