An electric connector includes a housing and a pair of reinforcing metal fittings. The housing has a bottom wall having a rectangular shape, a pair of short walls, a pair of long walls, and an island-shaped protruding wall surrounded by the short walls and the long walls. The reinforcing metal fitting has an upper plate part along an upper face of the short wall, an outer plate part along an outer side face of the short wall, and a pair of side plate parts extending from the upper plate part along inner side faces of the pair of long walls. The pair of side plate parts has a mounting part to be fixed to a mounting face and a long wall reinforcing wall part whose plate thickness face is directed in a direction in which the long wall is stood.