An electrical connector for circuit boards includes: a terminal including a connecting portion for connection to a circuit board, the connecting portion being disposed on one end of the terminal, and a contact portion for contact with a counterpart connector element, the contact portion being disposed on the other end of the terminal; and a housing retaining the terminal and including a stationary housing for mounting to the circuit board through the terminal and a movable housing movable relative to the stationary housing and receiving the contact portion of the terminal. The terminal includes a stationary-side retained portion retained by the stationary housing, a movable-side retained portion retained by the movable housing, an elastic portion located between the stationary-side retained portion and the movable-side retained portion and elastically deformable, and a relay portion constituting a signal transmission path shorter than a total length of the elastic portion.