A connector includes a housing; and an annular packing to be sandwiched between the housing and a mating component. The packing has: an annular seal portion protruding toward a radially outer side, and an annular depressed portion located on a surface of the seal portion on the radially inner side and depressed toward the radially outer side. An edge of the depressed portion is positioned on one side with respect to a protruding end of the seal portion. When the housing and the mating component are fitted to each other, the protruding end of the seal portion is in contact with the mating component, the edges of the depressed portion are in contact with the housing, and the end portion is displaced in a direction away from the housing to warp with a vicinity of the edge on the one side as a center.