A refrigerator includes a main body that defines a storage space, a door configured to open or close the storage space, and a dispenser located in the door and configured to dispense cooled water and purified water. The refrigerator also includes a purified water input part that inputs a command for dispensing the purified water, a cooled water input part that inputs a command for dispensing the cooled water, and a dispensing amount input part that sets an amount of purified water to be dispensed based on the purified water being selected through the purified water input part. The refrigerator further includes a filter device located within the storage space to purify water supplied from a water supply source, and a water tank storing water that has passed through the filter device in a cooled state.