Cox Green is a civil parish in the Royal Borough of Windsor and Maidenhead in Berkshire, England with most of its housing divided only by a major, embanked road from Maidenhead. The remainder of this area is rural. The parish is roughly bounded by the A4 road to the north, the A404(M) motorway to the northeast, the M4 motorway to the southeast and a rural boundary with White Waltham parish to the west.