 Alviano (TR): Valdaone (Trento - Trentino Alto Adige - Italy); Ondara (Spain); Vajnory (Slovak Republic) |
| Amelia (TR): Stylida (Greece), since November 2002; Civitavecchia (Rome – Lazio - Italy), since November 1995; Joigny (Burgundy, France), since October 2005 |
| Assisi (PG): San Francisco (California, United States), since 1982 |
| Baschi (TR): Vernoux en Vivarais (Rhône-Alpes, France), since 1985 |
| Campello sul Clitunno (PG): Parignè (Bretagna, France); San Giorgio Canavese (Turin - Piedmont - Italy), since October 1998 |
| Cannara (PG): Montalto Dora (Torino - Piemonte - Italy) |
| Cascia (PG): Carpineto Romano (Rome-Lazio-Italy) |
| Castel Ritaldi (PG): Ijadabra (Libano) |
| Collazzone (PG): Brou sûr Chantereine (France), since 1995 |
| Corciano (PG): Pentling (Germany), since 1997; Civrieux d'Azergues (France), since 2000 |
| Fabro (TR): Bas-en-Basset (France, since 2006) |
| Ferentillo (TR): Sérignan du Comtat (France) |
| Foligno (PG): Shibukawa (Gunma, Japan); La Louvière (Vallonia, Belgium), since September 1996; Gemona del Friuli (Udine - Friuli-Venezia Giulia), since 2001; Dogna (Udine-Friuli Venezia Giulia-Italy) |
| Guardea (TR): Greccio (Rieti-Lazio-Italy) |
| Marsciano (PG): Tremblay (France); Loropeni (Burkina Faso), since 1987; Orosei (Nuoro - Sardinia - Italy), since 1985 |
| Montecchio (TR): Wessobrunn (Bavaria, Germany) |
| Orvieto (TR): Seinajoki (Finland), since November 2004; Betlemme (Gaza Strip), since 1996; Givors (France), since 2000; Kercem (Gozo – Malta), since December 2003; Maebashi (Japan), since 1997; Aiken (United States), since 1997 |
| Otricoli (TR): Mstow (Poland), since October 2006 |
| Paciano (PG): Fontaines (Burgundy, France), since October 1996; Mosman (Sidney, Australia), since November 1998 |
| Panicale (PG): La Verrière (France) |
| Perugia (PG): Potsdam (Brandeburgo, Germany), since December 1990; Seattle (Washington, United States), since May 1993; Tübingen (Baden-Württemberg, Germany); Bratislava (Slovacchia), since July 1962; Aix en Provence (Provence, France), since March 1979; Grand Rapids (Michigan, United States) |
| Piegaro (PG): Verneuil (France); Dvur Kralove Nad Labem (Czech Republic), since October 2002 |
| Porano (TR): Caudrot (France), since 1976 |
| Scheggia e Pascelupo (PG): Treppo Grande (Udine - Friuli Venezia Giulia - Italy) |
| Stroncone (TR): Voves (France) |
| Terni (TR): Cartagena (Spain), since 2002; Dunaújváros (Hungary); Saint-Ouen (France), since 1962 |
| Tuoro sul Trasimeno (PG): Lamta (Tunisia); Amöneburg (Marburg-Biedenkopf district in Hesse - Germany) |
The sister cities for the towns in Umbria, the cooperative agreements with european and other towns all over the world
