Viscounts | Titles by Rank
- Viscounts of Arberoa
- Viscounts of Arboleda
- Viscounts of Arbuthnott
- Viscounts of Arcozelo
- Viscounts of Arinos
- Viscounts of Ariró
- Viscounts of Ariz
- Viscounts of Arjuzon
- Viscounts of Armaillé
- Viscounts of Arnaud de Vitrolles
- Viscounts of Arneiro
- Viscounts of Arneirós
- Viscounts of Arriaga
- Viscounts of Asseca
- Viscounts of Asselin
- Viscounts of Assentiz
- Viscounts of Assis Martins
- Viscounts of Aster
- Viscounts of Atouguia
- Viscounts of Aubeterre
- Viscounts of Aubusson
- Viscounts of Audenarde
- Viscounts of Auerstaedt
- Viscounts of Auge
- Viscounts of Augusto Correia
- Viscounts of Aulnay
- Viscounts of Aurora
- Viscounts of Autun
- Viscounts of Avallon
- Viscounts of Avelar
- Viscounts of Avenel
- Viscounts of Avout
- Viscounts of Ay
- Viscounts of Ayala
- Viscounts of Azarujinha
- Viscounts of Azenha
- Viscounts of Azevedo
- Viscounts of Azevedo e Silva
- Viscounts of Azevedo Ferreira
- Viscounts of Azinheira
- Viscounts of Azurara
- Viscounts of Baçar
- Viscounts of Baependi
- Viscounts of Bahía
- Viscounts of Bahia Honda de la Real Fidelidad
- Viscounts of Baigorri
- Viscounts of Baiguer
- Viscounts of Bailleul
- Viscounts of Balsemão
- Viscounts of Banderas