1. Ucler, Levent 1
2. Umbral, Francisco 1
3. Unamuno, Miguel de 1, 2, 3, 4, 5, 6
4. unemployment 1, 2, 3, 4
5. United Left party 1
6. Urbano, Pilar 1
7. urbanisation 1
8. Urdangarín, Iñaki, Duke of Palma 1
9. Uriarte, Edurne 1
10. USA
    1. and Aznar 1
    2. and Franco 1, 2
    3. and immigration 1
11. Usatges 1