An endoscope 2 includes: a window portion 15 that protrudes by a predetermined height from a flat portion 22 an air/water feeding nozzle 19 that is provided facing the window portion 15 from the flat portion 22, and that ejects a fluid toward the surface of the window portion 15 and an inclined portion 23 formed at a circumferential edge portion of the window portion 15 in which, in angles of inclination with respect to the flat portion 22 of the inclined portion 23, compared to the first angle of elevation θ1 that is an angle in a direction along a first axis that passes through a center of the window portion 15 in an ejection direction of the fluid ejected from the air/water feeding nozzle 19, the second angle of elevation θ2 that is an angle in a direction along a second axis that is orthogonal to the first axis at the center of the window portion is made a larger angle, thereby further improving cleanability and water draining property of the window portion 15.
