A lock and a home appliance having the same are disclosed. The lock includes a holder provided at one selected from between a cabinet and a door, a housing provided at the other selected from between the cabinet and the door, a first stopper provided at the housing, an actuation unit configured to reciprocate in the housing, the actuation unit being moved away from the introduction port by the holder when the door to the introduction port is closed, a fastening unit supported by the first stopper, the fastening unit being separated from the first stopper and coupled to the holder when the actuation unit is moved away from the introduction port, a first elastic member for providing force necessary to move the fastening unit away from the introduction port, and a second elastic member for providing force necessary to move the actuation unit toward the introduction port.