An actuating drive for driving a movably mounted furniture part includes an actuating arm connected to the furniture part. The actuating arm is configured to be movable between a first end position and a second end position, and a damper is provided for damping a movement of the actuating arm into the first end position and a movement of the actuating arm into the second end position. The damper performs a damping stroke during the damping, and a coupling mechanism is provided for coupling the actuating arm or an actuating part connectable thereto to the damper when the actuating arm is moved into the two end positions. The coupling mechanism has an actuator for performing the damping stroke of the damper, and the actuator acts on the damper when the actuating arm is moved into the first end position and when the actuating arm is moved into the second end position.