Optical connector and optical connector module

An optical connector attached to an optical transmission line including a base body and an optical waveguide stacked on the base body, the optical connector comprising:

• a first side surface facing an end surface of the optical transmission line;
• a second side surface located opposite to the first side surface in a light propagation direction;
• at least one first lens formed in the first side surface to face an end surface of the optical waveguide;
• and
• multiple second lenses formed at positions on the second side surface, the positions facing the first lens in the light propagation direction,
• wherein a total number of lenses of the at least one first lens is less than a total number of lenses of the multiple second lenses, and wherein a lens surface of one of the at least one first lens is formed so as to extend over at least two adjacent ones of the multiple second lenses and a shape of the lens surface of the first lens varies depending on positions at which the multiple second lenses are formed.