Waterproof connector that can be designed to be short in overall length

A waterproof connector comprising:

• a housing including a fitting portion which is adapted to be fitted into a fitting hole of a mating connector in a fitting direction, the fitting portion having a terminal receiving hole which penetrates the fitting portion in the fitting direction;
• a terminal to be received in the terminal receiving hole;
• a retainer which is assembled in the fitting portion so as to be movable between a preset position and a set position in a direction crossing the terminal receiving hole;
• and
• a seal member which is attached to an outer periphery of the fitting portion and is adapted to be brought into close contact with an inner periphery of the fitting hole for sealing when the fitting portion is fitted to the fitting hole;
• wherein the retainer has a projection which retreats to a side of the terminal receiving hole to allow insertion of the terminal into the terminal receiving hole when the retainer is at the preset position and which projects into the terminal receiving hole to engage with the terminal so as to hold the terminal in the terminal receiving hole when the retainer is at the set position, and the retainer and the seal member are provided at positions which overlap each other in the fitting direction.