Barons | Titles by Rank
- Barons Nau de Champlouis
- Barons Nauckhoff
- Barons Neuman de Végvár
- Barons Neumann
- Barons Neussel
- Barons Neville
- Barons Nicolics-Podrinje
- Barons Nordenskiöld
- Barons Northbourne
- Barons Northcote
- Barons Nugent
- Barons Oaksey
- Barons Oberndorf
- Barons Oberndorff
- Barons of la Joyosa
- Barons of Monte Villena
- Barons of San Calixto
- Barons of Torre Cardela
- Barons of Abadia
- Barons of Abella
- Barons of Abiaí
- Barons of Aboville
- Barons of Acaya
- Barons of Aceguá
- Barons of Açu
- Barons of Açu da Torre
- Barons of Adelebsen
- Barons of Adzaneta
- Barons of Agres y Sella
- Barons of Água Branca
- Barons of Água-Izé
- Barons of Aguado
- Barons of Aguapeí
- Barons of Águas Belas
- Barons of Águas Claras
- Barons of Aguiar
- Barons of Aguiar de Andrada
- Barons of Aguiar Valim
- Barons of Aguiló
- Barons of Aimoré
- Barons of Airvault
- Barons of Aiuruoca
- Barons of Aixe
- Barons of Alacuás
- Barons of Alagoa
- Barons of Alagoas
- Barons of Alagoinhas
- Barons of Alasquer
- Barons of Albalat
- Barons of Albi