| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| El Uclar | city | Santiago del Estero | Argentina | -27.12 | -64.42 | 882 | 298 |
| El Ucle | city | Santiago del Estero | Argentina | -29.57 | -62.50 | 380 | 0 |
| El Unquillo | city | Rio Negro | Argentina | -39.96 | -68.07 | 2004 | 0 |
| El Urunday | city | Chaco | Argentina | -27.83 | -60.97 | 232 | 165 |
| El Urundel | city | Formosa | Argentina | -23.60 | -62.22 | 830 | 149 |