A wire harness includes a connector and a grommet. The connector includes an inner member having an annular plate-shaped flange. The inner member includes a first divided inner part, a second divided inner part, a deformable hinge that connects one end of the first divided inner part and one end of the second divided inner part to each other, and a lock portion that is formed on a fitting portion between the other end of the first divided inner part and the other end of the second divided inner part. The lock portion is formed on a portion where the other end of the first divided inner part and the other end of the second divided inner part are fitted to each other by sliding movement in accordance with a twisting of the hinge about a first axis.