A waterproof connector includes a housing having a fitting portion to be fitted into a mounting hole of a mating member. A packing mounting surface is provided on an outer peripheral surface of the fitting portion. The waterproof connector further includes a first packing mounted on a rear end side of the packing mounting surface in a fitting direction of the fitting portion, a second packing mounted on a front end side of the packing mounting surface in the fitting direction of the fitting portion, and a retainer provided between the first packing and the second packing and locked to a locking portion provided on the outer peripheral surface of the fitting portion.