metro systems in France:

Lille | Lyon | Marseille | Paris | Rennes | Toulouse

tram systems in France:

Angers | Bordeaux | Brest | Caen | Clermont-Ferrand | Dijon | Grenoble | Le Havre | Le Mans | Lille | Lyon | Marseille | Montpellier | Mulhouse | Nancy |

Nantes | Nice | Orléans | Paris | Reims | Rouen | Saint-Étienne | Strasbourg | Toulouse | Tours | Valenciennes || Laon

Systems under construction or planned are listed in Italics

List of French trams at Wikipedia.fr