| Ungava | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Unorganized Territory | ALGOMA | ONTARIO |
| Unorganized Territory/Territoire non-organisé | ALGOMA | ONTARIO |
| Unorganized Territory/Territoire non-organisé #09 | PONTIAC | QUEBEC |
| Unorganized Territory/Territoire non-organisé #11 | WRIGHT | QUEBEC |
| Unorganized Territory/Territoire non-organisé #01 | MACDONALD | MANITOBA |
| Unorganized Territory/Territoire non-organisé #02 | MARQUETTE | MANITOBA |
| Unorganized Territory/Territoire non-organisé #03 | PROVENCHER | MANITOBA |
| Unorganized Territory/Territoire non-organisé #04 | SELKIRK | MANITOBA |
| Unorganized Territory/Territoire non-organisé #06 | CHAMPLAIN | QUEBEC |
| Unorganized Territory/Territoire non-organisé #07 | CHICOUTIMI & SAGUENAY | QUEBEC |
| Unorganized Territory/Territoire non-organisé #08 | MASKINONGÉ | QUEBEC |
| Unorganized Territory/Territoire non-organisé #10 | PORTNEUF | QUEBEC |
| Upham | KINGS | NEW BRUNSWICK |
| Upper Dyke Village | KINGS | NOVA SCOTIA |
| Upper Londonderry | COLCHESTER | NOVA SCOTIA |
| Upper Musquodoboit | HALIFAX | NOVA SCOTIA |
| Upper Prospect | HALIFAX | NOVA SCOTIA |
| Upper South River | ANTIGONISH | NOVA SCOTIA |
| Upper Stewiacke East | COLCHESTER | NOVA SCOTIA |
| Upper Bonanza (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper Dominion Creek, Lombard (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper Eldorado (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper Hunker, Gold Bottom (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper La Have | LUNENBURG | NOVA SCOTIA |
| Upper Laberge (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper Stewart, Lansing Creek (Yukon) | UNORGANIZED TERRITORIES/TERRITOI | THE TERRITORIES |
| Upper Stewiacke West | COLCHESTER | NOVA SCOTIA |
| Urquhart | ALBERTA | THE TERRITORIES |
| Usborne | PERTH (South/Sud) | ONTARIO |
| Uxbridge | ONTARIO (West/Ouest) | ONTARIO |
| Uxbridge (Town/Ville) | ONTARIO (West/Ouest) | ONTARIO |