de Valognes (Valoignes, Valoines, Valoins, Valons, Valeynes, Valeignes, Valens, Valence, Valance, Valang, Valoniis) is a family name of two distinct powerful families with notable descendants in the centuries immediately following the Norman Conquest. Although a connection between them has been inferred by some authorities, this is not supported by positive evidence.