Disclosed herein is a washing machine that is capable of generating hot air and steam to be supplied into a rotary tub using a single heater. The washing machine includes a rotary tub to receive laundry, a heating duct defining a channel to supply hot air to the rotary tub, a heater mounted in the heating duct, and a steam generating part heated by the heater to generate steam to be supplied to the rotary tub. The steam generating part includes an object heated by contacting the heater. The object includes a tubular member having an outer surface contacting the heater and a hollow part for steam generation defined therein. The object may include a steam generating plate having one surface contacting the heater.