In a board connector wherein fixing portions 5 which have respective screw holes screw holes each into which a screw member passed through the circuit board is threaded and are adapted to fix a housing 3 to the circuit board by tightening the screw members are integrally provided at the synthetic resin-made housing 3 adapted to be mounted in an upstanding manner on the circuit board, the fixing portions 5 are provided in a projecting manner at that portion of one longitudinal outer wall surface of the housing 3 disposed near to a proximal end portion thereof, and a fixing surface 5a of the fixing portion 5 is formed into such a shape as to restrain an end face of the housing 3 from lifting from a surface of the circuit board at the time when the fixing portion 5 is fixed to the circuit board 2 by a tightening force of the screw member 7.