A refrigerator includes a water tank supporter arranged in a cabinet, a water tank that is connected to the water tank supporter and that defines a cavity, and a water supply platform that is movably connected to the water tank. The water supply platform includes a body portion that has a water inlet, a water outlet configured to discharge water to the cavity, and a water supply flow passage connected between the water inlet and the water outlet. The water supply platform also includes a movable portion configured to move the body portion such that the water inlet moves from an inside of the cabinet to an outside of the cabinet or vice versa.