An endoscope includes: a first lens located at a distal-most position, a part of the first lens being exposed outside a movable lens barrel configured to be able to move, and configured to hold a movable lens disposed on a proximal end side with respect to the first lens an actuator unit including a coil that drives the movable lens barrel and generates heat by receiving a supply of electric power and an objective lens barrel that holds inside thereof the movable lens barrel in a movable manner while holding the first lens and the actuator unit, and conducts heat generated from the coil to the first lens.
