A circuit board electrical connector includes: a plurality of terminals; a fixed housing fixed to a circuit board via the terminals; and a movable housing relatively movable with respect to the fixed housing, in which the terminals are provided to be bridged between the fixed housing and the movable housing, the terminals include a fixed side held portion held by the fixed housing, a movable side held portion positioned on an inner side in a connector width direction than the fixed side held portion and held by the movable housing, and an elastically deformable intermediate portion positioned between the fixed side held portion and the movable side held portion, the intermediate portion includes at least one of elastic portions bent in a connector height direction, and a specific elastic portion of the elastic portions can abut on the fixed housing when being elastically deformed by a predetermined deformation amount.