Viscounts | Titles by Rank
- Viscounts of Chérisy
- Viscounts of Chevigné
- Viscounts of Chevigny
- Viscounts of Chezelles
- Viscounts of Chézelles
- Viscounts of Cidrais
- Viscounts of Clermont
- Viscounts of Clermont-en-Trevies
- Viscounts of Clermont-Tonnerre
- Viscounts of Coëtmen
- Viscounts of Comblis
- Viscounts of Comborn
- Viscounts of Condeixa
- Viscounts of Condeixa-II
- Viscounts of Condeixa-III
- Viscounts of Congonhas do Campo
- Viscounts of Coriscada
- Viscounts of Correia Botelho
- Viscounts of Correia Godinho
- Viscounts of Córte
- Viscounts of Cortegaça
- Viscounts of Coruche
- Viscounts of Corujeira
- Viscounts of Costa
- Viscounts of Costa Franco
- Viscounts of Costa Veiga
- Viscounts of Courval
- Viscounts of Couserans
- Viscounts of Covilhã
- Viscounts of Cressac de Soleuvre
- Viscounts of Creyssel
- Viscounts of Cruz Alta
- Viscounts of Cruzeiro
- Viscounts of Cunha
- Viscounts of Cunha Bueno
- Viscounts of Cunha Matos
- Viscounts of Curel
- Viscounts of Damão
- Viscounts of Dampierre
- Viscounts of Daupias
- Viscounts of Dave
- Viscounts of Degracias
- Viscounts of Denfert-Rochereau
- Viscounts of Desterro
- Viscounts of Deux-Ponts
- Viscounts of Dhuy e d' Elzee
- Viscounts of Dinant
- Viscounts of Dominguizo
- Viscounts of Donges
- Viscounts of Donges