The endoscope includes an insertion section 27 to be inserted into a cavity to be observed, a distal end member provided at the distal end of the insertion section 27 and having a hole 48, a tubular member inserted in the hole 48, a fixing member 51 engageable with one member selected from between the distal end member and the tubular member and configured to fix the other member by clamping the other member with the one member in the extending direction of the hole.
