Abstract: A nozzle assembly for a bidet includes a washing nozzle, a bidet nozzle mounted under the washing nozzle, a driving motor driving the washing nozzle and/or the bidet nozzle, a gear train, and a nozzle case for receiving the washing and bidet nozzles and the gear train. The gear train includes a driving gear connected to the driving motor to transmit rotational force of the driving motor, a first nozzle gear reciprocating the washing nozzle by receiving the rotational force from the driving gear, and a second nozzle gear reciprocating the bidet nozzle by receiving the rotational force from the driving gear.