NANNETENSIS (Nantes - Loire-Atlantique) | Probably existing in the fourth century. |
NARBONENSIS (Narbonne - Aude) | Created in the third century. |
NEMAUSENSIS (Nîmes - Gard) | Mentioned in 396. |
NICIENSIS (Nice - Alpes-Maritime) | Created at the beginning of the fourth century. Joined with the See of Cimiez in the fifth century and transferred to the See of Nice in the twelfth century. |
NIVERNENSIS (Nevers - Ničvre) | Created in the sixth century. |
NOVIOMENCIS (Noyon - Oise) | Created in the sixth century, but joined with Tournai. Became an independent diocese in 1146. |