Provided is an electrical connector without making the manufacturing process complicated and without increasing the size and the manufacturing cost, wherein, an electrical connector includes a holddown attached to a body part of a second insulating housing and fixed to a circuit board P. The holddown is formed of a single metal sheet, and includes a held part held by body part, leg parts extending from the held part, protruding from opposed faces facing the circuit board of the body part placed on the circuit board, and being fixed to the circuit board, and an extension part extending from the held part in a direction parallel to a direction in which a counterpart connector is engaged.