An endoscope comprising: an insertion unit that has a longitudinal axis; a columnar tip portion body that is disposed on a tip side of the insertion unit and has a central axis parallel with the longitudinal axis of the insertion unit; a plate-like cap body that includes a base end face facing a tip surface of the tip portion body and being in contact with the tip surface; a mounting portion that includes a mounting surface (82A, B) where a part of an outer peripheral surface of the tip portion body is formed in a planar shape or a concave shape; an extending portion that extends toward the tip portion body from the base end face of the cap body and includes an outer surface and a contact surface provided closer to the central axis than the outer surface and being in contact with the mounting surface (82A, B); a connecting portion that includes a first engagement portion formed on the mounting surface (82A, B) and a second engagement portion formed on the contact surface and connects the cap body to the tip portion body through engagement between the first engagement portion and the second engagement portion; a coating member that covers the outer peripheral surface of the tip portion body and the outer surface of the extending portion in a state in which the cap body and the tip portion body are connected to each other by the connecting portion; and a stringy or belt-like fixing member that is provided on an outer peripheral surface of the coating member, is disposed at a position where the connecting portion is provided in a direction of the central axis, and fixes engagement between the first and second engagement portions (90, 92). an insertion unit that has a longitudinal axis; a columnar tip portion body that is disposed on a tip side of the insertion unit and has a central axis parallel with the longitudinal axis of the insertion unit; a plate-like cap body that includes a base end face facing a tip surface of the tip portion body and being in contact with the tip surface; a mounting portion that includes a mounting surface (82A, B) where a part of an outer peripheral surface of the tip portion body is formed in a planar shape or a concave shape; an extending portion that extends toward the tip portion body from the base end face of the cap body and includes an outer surface and a contact surface provided closer to the central axis than the outer surface and being in contact with the mounting surface (82A, B); a connecting portion that includes a first engagement portion formed on the mounting surface (82A, B) and a second engagement portion formed on the contact surface and connects the cap body to the tip portion body through engagement between the first engagement portion and the second engagement portion; a coating member that covers the outer peripheral surface of the tip portion body and the outer surface of the extending portion in a state in which the cap body and the tip portion body are connected to each other by the connecting portion; and a stringy or belt-like fixing member that is provided on an outer peripheral surface of the coating member, is disposed at a position where the connecting portion is provided in a direction of the central axis, and fixes engagement between the first and second engagement portions (90, 92).