Lignon

Lignon may refer to:


 * Lignon, Marne, a commune in northern France
 * Lignon du Forez, a river in south-central France, left tributary of the Loire
 * Lignon du Velay, a river in south-central France, right tributary of the Loire
 * Lignon (Ardèche), a river in south-central France, right tributary of the Ardèche
 * Le Lignon, a community in Vernier, Switzerland in the Geneva metropolitan area