An electric connector has: a connector housing 3 inside which pins are housed and which has at the front a portion for coupling with a counterpart connector and at the rear a holder mounting portion; a sealing member 35 that is fitted onto the outer periphery of the holder mounting portion; a rear holder 6 which has at the front a portion for clamping of the sealing member 35 and which is fixed onto the holder mounting portion; a rear cover 20 which covers the rear of the rear holder 6; and a manipulation lever 30 that latches to the counterpart connector. The pair of opposed outer walls of the rear holder 6 are formed as double walls constituted of an inner plate and an outer plate with a gap therebetween, and in such double walls there are formed housing latching portions with which the connector housing 3 engages, cover installation portions to which the rear cover 20 is mounted, and lever mounting portions to which the manipulation lever 30 is mounted. Thanks to such a structure, an electric connector is provided in which the housing latching portions, cover installation portions and lever mounting portions are gathered together on a single member, so that the shapes of such latching portions, etc., are rendered simple, and assembly also is rendered simple.