An endoscope 2 is configured such that, at a distal end portion 15 of an insertion portion 11, an objective lens 118 is formed at a position protruded most in a distal end direction, a head top surface of a head top portion 34b of an air/water feeding nozzle 34 is formed at a position protruded in the distal end direction, and then two (first and second) illumination portions 29a, 29b are formed at a position protruded in the distal end direction.