A lens barrel includes a movable device to adjust an optical system, an operation section, and a display section. The operation section has a coupling section to be coupled with the movable device to control movement of the movable device. The display section is disposed in line with the operation section in a direction around an optical axis of the lens barrel to overlap with the operation section in a direction of the optical axis. The display section includes a display body that is movable in displaying a state of the optical system adjusted by the movable device. The display body of the display section is disposed to overlap the coupling section of the operation section in a radial direction of the lens barrel.