A charging connector (1) includes a connector case (3A, 3B) and a release lever (40) slidable in the connector case (3A, 3B). The release lever (40) includes slide projections (48). The connector case (3A, 3B) includes slide grooves (6) in which the slide projections (48) are inserted. The slide projections (48) slide in the slide grooves (6) so that the release lever (40) is guided by the slide grooves (6) in a slidable manner. The slide grooves (6) include water drain grooves (8) provided on bottoms thereof and extending downward to penetrate the bottoms.