A fiber optic receptacle which can be assembled with high precision and which has high reliability and is low-priced is provided. The receptacle includes a tubular shaped sleeve having an inner bore into which a ferrule is to be inserted; and a stopper member having a distal end face to be contacted to one end of the ferrule and a rear end face. The stopper member is in the inner bore of the sleeve with the distal and the rear end faces apart from both ends of the inner bore. The inner bore of the sleeve has a contact area contacting with the stopper member and non-contact area not contacting with the stopper member. The non-contact area is on both sides of the contact area, and a diameter of the inner bore in the contact area is larger than that in the non-contact area.