A wire harness, including: a plurality of tubes that each include a tubular shape-retaining conductor having a conductive property and a shape-retaining property, the plurality of tubes being routed in parallel, wherein: a conductive tube, that includes an insulating cover that covers the shape-retaining conductor, is included among the plurality of tubes, and thicknesses of the shape-retaining conductors that are included in at least two tubes among the plurality of tubes are different to each other.