An electrical connector is provided which includes a terminal that includes two terminal pieces, a fixed housing that is fixed to a machine or a substrate, and a movable housing that is movably supported to the fixed housing by the terminal. Each of the terminal pieces is formed of a conductive plate. A connection portion is formed on one end side of each of the terminal pieces in a length direction and connected to a circuit provided in the machine or the substrate. A contact portion is formed on another end side of each of the terminal pieces in the length direction and comes in contact with a terminal of a mating connector. A spring portion is formed in each of the terminal pieces and connects the connection portion and the contact portion such that the contact portion is movable with respect to the connection portion between the connection portion and the contact portion. The two terminal pieces are disposed such that at least parts of the spring portions of the two terminal pieces are overlapped via a gap in a direction perpendicular to a surface of the spring portion.