- Ua-Huka (Polynésie française)
- Ua-Pou (Polynésie française)
- Uberach (Bas-Rhin, France)
- Ubexy (Vosges, France)
- Ubraye (Alpes-de-Haute-Provence, France)
- Ucciani (Corse-du-Sud, France)
- Ucel (Ardèche, France)
- Uchacq-et-Parentis (Landes, France)
- Uchaud (Gard, France)
- Uchaux (Vaucluse, France)
- Uchentein (Ariège, France)
- Uchizy (Saône-et-Loire, France)
- Uchon (Saône-et-Loire, France)
- Uckange (Moselle, France)
- Ueberstrass (Haut-Rhin, France)
- Uffheim (Haut-Rhin, France)
- Uffholtz (Haut-Rhin, France)
- Ugine (Savoie, France)
- Uglas (Hautes-Pyrénées, France)
- Ugnouas (Hautes-Pyrénées, France)
- Ugny-le-Gay (Aisne, France)
- Ugny-l’Equipée (Somme, France)
- Ugny (Meurthe-et-Moselle, France)
- Ugny-sur-Meuse (Meuse, France)
- Uhart-Cize (Pyrénées-Atlantiques, France)
- Uhart-Mixe (Pyrénées-Atlantiques, France)
- Uhlwiller (Bas-Rhin, France)
- Uhrwiller (Bas-Rhin, France)
- Ukraine
- Ulcot (Deux-Sèvres, France)
- Ully-Saint-Georges (Oise, France)
- Umpeau (Eure-et-Loir, France)
- Unac (Ariège, France)
- Uncey-le-Franc (Côte-d’Or, France)
- Unchair (Marne, France)
- Ungersheim (Haut-Rhin, France)
- Unias (Loire, France)
- Unienville (Aube, France)
- Unieux (Loire, France)
- Unverre (Eure-et-Loir, France)
- Unzent (Ariège, France)
- Upaix (Hautes-Alpes, France)
- Upie (Drôme, France)
- Urau (Haute-Garonne, France)
- Urbalacone (Corse-du-Sud, France)
- Urbanya (Pyrénées-Orientales, France)
- Urbeis (Bas-Rhin, France)
- Urbès (Haut-Rhin, France)
- Urbise (Loire, France)
- Urçay (Allier, France)
- Urcel (Aisne, France)
- Urcerey (Territoire de Belfort, France)
- Urciers (Indre, France)
- Urcuit (Pyrénées-Atlantiques, France)
- Urcy (Côte-d’Or, France)
- Urdens (Gers, France)
- Urdès (Pyrénées-Atlantiques, France)
- Urdos (Pyrénées-Atlantiques, France)
- Urepel (Pyrénées-Atlantiques, France)
- Urgons (Landes, France)
- Urgosse (Gers, France)
- Uriménil (Vosges, France)
- Urmatt (Bas-Rhin, France)
- Urost (Pyrénées-Atlantiques, France)
- Urou-et-Crennes (Orne, France)
- Ur (Pyrénées-Orientales, France)
- Urrugne (Pyrénées-Atlantiques, France)
- Urs (Ariège, France)
- Urschenheim (Haut-Rhin, France)
- URSS. 1922-1991
- Urtaca (Haute-Corse, France)
- Urtière (Doubs, France)
- Urt (Pyrénées-Atlantiques, France)
- Uruffe (Meurthe-et-Moselle, France)
- Uruguay
- Urval (Dordogne, France)
- Urville (Aube, France)
- Urville (Calvados, France)
- Urville (Manche, France)
- Urville-Nacqueville (Manche, France)
- Urvillers (Aisne, France)
- Urville (Vosges, France)
- Ury (Seine-et-Marne, France)
- Urzy (Nièvre, France)
- Usclades-et-Rieutord (Ardèche, France)
- Usclas-d’Hérault (Hérault, France)
- Usclas-du-Bosc (Hérault, France)
- Usinens (Haute-Savoie, France)
- Ussac (Corrèze, France)
- Ussat (Ariège, France)
- Usseau (Deux-Sèvres, France)
- Usseau (Vienne, France)
- Ussel (Cantal, France)
- Ussel (Corrèze, France)
- Ussel-d’Allier (Allier, France)
- Ussel (Lot, France)
- Usson-du-Poitou (Vienne, France)
- Usson-en-Forez (Loire, France)
- Usson (Puy-de-Dôme, France)
- Ussy (Calvados, France)
- Ussy-sur-Marne (Seine-et-Marne, France)
- Ustaritz (Pyrénées-Atlantiques, France)
- Ustou (Ariège, France)
- Us (Val-d’Oise, France)
- Utelle (Alpes-Maritimes, France)
- Utrecht (Pays-Bas)
- Uttenheim (Bas-Rhin, France)
- Uttenhoffen (Bas-Rhin, France)
- Uttwiller (Bas-Rhin, France)
- Uturoa (Polynésie française)
- Uvernet-Fours (Alpes-de-Haute-Provence, France)
- Uxeau (Saône-et-Loire, France)
- Uxegney (Vosges, France)
- Uxelles (Jura, France)
- Uxem (Nord, France)
- Uza (Landes, France)
- Uzan (Pyrénées-Atlantiques, France)
- Uzay-le-Venon (Cher, France)
- Uzech (Lot, France)
- Uzein (Pyrénées-Atlantiques, France)
- Uzel (Côtes-d’Armor, France)
- Uzelle (Doubs, France)
- Uzemain (Vosges, France)
- Uzer (Ardèche, France)
- Uzerche (Corrèze, France)
- Uzer (Hautes-Pyrénées, France)
- Uzès (Gard, France)
- Uzeste (Gironde, France)
- Uz (Hautes-Pyrénées, France)
- Uzos (Pyrénées-Atlantiques, France)