The present lens barrel is provided with a cylindrical moving frame and a cylindrical cam frame disposed on the inner periphery of the moving frame. The cylindrical moving frame has a first cam follower and a second cam follower. The first cam follower projects radially from the inner peripheral surface or the outer peripheral surface. The second cam follower projects radially further from the top of the first cam follower. The cylindrical cam frame is disposed on the inner periphery or the outer periphery of the moving frame, and has a first cam and a second cam on the outer peripheral surface side or the inner peripheral surface side. The first cam engages with the first cam follower, and has a cam surface only on the image plane side in the optical axis direction. The second cam is formed on the bottom surface of the first cam, and engages with the second cam follower.