An optical connector is disclosed. The optical connector includes a rear housing, an inner housing, an arm and an outer housing. The inner housing includes at least one retaining hole to house a ferrule. The rear housing moves linearly and rotates with respect to the inner housing. The arm moves linearly together with the rear housing with respect to the inner housing. The outer housing disposed on an outer periphery of the inner housing covers a front portion of the inner housing. The outer housing rotates with respect to the inner housing by a rotation guiding mechanism cooperating with the arm. The outer housing includes a forward wall covering the distal end of the inner housing. An opening area of the forward wall can be aligned with the retaining hole of the ferrule when the outer housing is rotated from an initial position to a connected position.