| Author | Titles | | 1.
| Viegas, Ana Maria | 8 | | 2.
| Viegas, António dos Santos | 1 | | 3.
| Viegas, Artur, pseud. | 8 | | 4.
| Viegas, Catarina | 1 | | 5.
| Viegas, Cristina, 1961- | 2 | | 6.
| Viegas, Filipe | 1 | | 7.
| Viegas, Francisco José, 1962- | 2 | | 8.
| Viegas, Francisco Quental Calheiros, 1911-1986 | 1 | | 9.
| Viegas, Gaspar, fl.1534 | 1 | | 10.
| Viegas, Gisela | 2 |
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