In an embodiment, an optical receptacle includes a first lens face that is disposed on a first surface 2a on a photoelectric conversion device 3 side in an optical receptacle main body so that a portion of light of the light of a light-emitting element 7 is incident thereon, a first reflective surface 14 that is disposed on a second surface 2b on the side opposite to the first surface 2a and reflects the light that has been incident on the first lens face 11, and a second reflective surface 16 that is disposed on the first surface 2a continuously with the first lens face 11 so that a remaining portion of light of the light of the light-emitting element 7 is incident thereon and reflects the incident remaining portion of light towards a light-receiving element 8 as monitor light are included.