Endoscope

An endoscope includes a distal end surface provided at a distal end of an insertion part; an observation window provided on the distal end surface; a nozzle; and a first protective projection, a second protective projection, and a third protective projection disposed at an outer peripheral part of the distal end surface and provided to project forward of the observation window. In all combinations of imaginary planes capable of coming into contact with the first protective projection, the second protective projection, and the third protective projection from a front side, the imaginary planes are disposed forward of the observation window, the imaginary planes are disposed at the same height as or forward of the nozzle, and the observation window and a portion of the nozzle are included within an outer ring region surrounded by the first protective projection, the second protective projection, and the third protective projection.