A lens hood includes: a casing provided with a through-hole; first and second rotary frames which are arranged side by side in an opening direction of the through-hole and rotate in opposite directions in conjunction with each other; and first and second lens covers which approach or separate from each other to open and close the through-hole. The first lens cover includes a first connection portion that is provided on one end side and rotatably connected to the first rotary frame, and a second connection portion that is provided on the other end side and rotatably connected to the second rotary frame. The second lens cover includes a third connection portion that is provided on one end side and rotatably connected to the second rotary frame and a fourth connection portion that is provided on the other end side and rotatably connected to the first rotary frame.