There is provided an endoscope in which the generation of heat at a front-end portion is reduced.The endoscope includes an imaging system 104 and an illumination system 103, and the illumination system 103 includes light guides 102a and 102b, and at least one illumination lenses 101a and 101b, and the imaging system 104 includes an objective lens unit LU and an image pickup element 105, and when a direction along a long side of the image pickup element 105 is let to be a first direction and a direction along a short side of the image pickup element 105 is let to be a second direction, the illumination system 103 is disposed at a position shifted in the second direction with respect to the imaging system 104, and the endoscope satisfies the following conditional expressions (1) and (2). 1.35
