Provided is an optical sight having a lens frame and multiple fixing members for fixing an objective lens to an inside of a barrel body. The objective lens is held on an inner peripheral surface of a lens frame. A male screw, which can be screwed into a female screw arranged on the inner peripheral surface of a barrel body, is arranged on an outer peripheral surface of the lens frame. Multiple through-holes are formed at a wall section of the lens frame corresponding to the outer peripheral surface of the objective lens along a circumferential direction of the wall section. The fixing member is made of metal or synthetic resin having a hardness lower than that of the barrel body. An assembly including the objective lens, the lens frame, and the fixing members is screwed into the female screw arranged on the inner peripheral surface of the barrel body.