A connector includes a tubular connector housing inside which a terminal accommodating room is formed, a terminal that is inserted into the terminal accommodating room from behind, and a retainer that retains the terminal which is accommodated in the terminal accommodating room by being mounted to the connector housing from a direction crossing the inserting direction of the terminal, wherein the retainer is formed with a terminal contact part which is inserted from an opening, with which a wall of the terminal accommodating room of the connector housing is formed, to touch the terminal which is accommodated in the terminal accommodating room, and the terminal contact part is formed into such a shape to push the terminal toward the front side of the terminal accommodating room in a process that the retainer moves to a regular position of the connector housing.