An electrical connector is to be connected to a mating side connector. The electrical connector includes a fixed housing to be fixed to a board; a movable housing arranged to be movable relative to the fixed housing; and a plurality of terminals disposed between the fixed housing and the movable housing. The terminal includes a connecting portion held with the fixed housing; a first elastic portion connected to the connecting portion; a terminal portion held with the movable housing; a second elastic portion connected to the terminal portion; and a wide width portion connected between the first elastic portion and the second elastic portion so that the first elastic portion is curved in a direction opposite to a direction that the second elastic portion is curved. The wide width portion has a width greater than that of the first elastic portion and the second elastic portion.