The present application provides an
electrical connector capable of preventing misinsertion of an object connector and suppressing deformation of a housing. An
electrical connector (1) includes a housing (2) having a plate-shaped body (21), a plurality of terminals (3) held to the plate-shaped body, and a
metal housing (4) having a cylindrical shape surrounding the periphery of the plate-shaped body and the terminals, wherein the housing has a fitting opening (40) for fitting the object connector, two or more side walls (41) disposed in a manner along the fitting direction of the object connector, a linking portion (42) linking adjacent side walls among the two or more side walls, and a first
branch strip-shaped piece (43) disposed at a position closer to the fitting opening than the linking portion, bent from one side wall (41a) among the adjacent side walls around an axis (J) along the fitting direction, and extending toward the other side wall (41b) among the adjacent side walls, and an edge (E) on the opposite side of the linking portion constitutes a part of the fitting opening.