RETAINING MEMBER AND WIRE HARNESS

A retaining member includes a first member and a second member. The first and second member have an engagement structure, thereby forming a retaining structure and an opening through which an electric wire is drawn out. The retaining structure sandwiches and retains a tip end of an exterior member by a groove provided in the first and second members. The first and second members have a regulating structure that regulates pinching of the electric wire in a gap between the first and second members. The regulating structure includes a protrusion in one of the first and second members, and a facing wall in the other member. The regulating structure is configured such that the protrusion and the facing wall overlap each other in a state where the first and second members are most separated from each other within a range allowed by a clearance of the engagement structure.