To provide a waterproof connector which is adaptable to a plurality of types of wire having different diameters.

Rubber plugs 60A, 60B are housed in a housing recess 27 of a connector housing 20. In the wire insertion holes 61A, 61B of the rubber plugs 60A, 60B, a wire 80 is inserted after passage of a terminal metal 90, so that the outer peripheral surface of the wire 80 adheres to the inner peripheral surface of the wire insertion holes 61A, 61B. At a part of the rubber plug 60A, 60B on the near side of the terminal metal 90 in the insertion direction, a small diameter rubber plug 60B having a small bore diameter of the wire insertion hole 61B is formed, and a large diameter rubber plug 60A having a bore diameter of the wire insertion hole 61A larger than the small diameter rubber plug 60B is formed at a part on the rear side of the terminal metal 90 in the insertion direction.