Provided is a wire harness that enables a connector component and a cable bundle to be attached to an external member while facilitating the operation and preventing wobbling of the connector component. The connector component is connected to a cable branch line on the radially outward side of the cable bundle, and includes a pair of confining surfaces on each of two sides in the circumferential direction of the cable bundle. The pair of confining surfaces face each other across a gap. The bundling member is disposed between the pair of confining surfaces, and is wound around the connector component and the cable bundle together from the outer side. The fixture is fixed to the bundling member and to an external member.