WIRE HARNESS

A wire harness including: an electric wire; a first tube in which the electric wire is housed; and a clamp that holds the first tube, wherein: the clamp includes a main body in which the first tube is housed, and a protrusion that protrudes from the main body in a longitudinal direction of the first tube, the first tube being fastened to the protrusion with a fastener, and the protrusion has an inner circumferential surface opposed to the first tube, a first end located on one side of the inner circumferential surface in a circumferential direction, and a second end located on the other side of the inner circumferential surface in the circumferential direction, a height of the inner circumferential surface in a vertical direction continuously decreasing from the first end to the second end in a state in which the wire harness is installed in the vehicle.