A refrigerator includes a main body, a first storage chamber and a second storage chamber provided inside the main body with front sides thereof open. An evaporator is arranged inside the main body and is configured to generate cold air and arranged behind the first storage chamber. A first duct is configured to supply the cold air generated from the evaporator to the first storage chamber and a second duct is configured to supply cold air to the second storage chamber. A connection duct is configured to connect the first duct and the second duct to cause the cold air inside the first duct to flow into the second duct, and a damper is configured to selectively open and close the connection duct. The damper is provided inside the first duct, and the second duct has a flat front surface in a form of a flat surface.