Name
- Nithisdale, Family1
- Norbury, Family1
- Nostell Priory, Yorkshire1
- Nowell, Family1
- Offley, Family1
- Offord, Andrew, Keeper of the Privy Seal, Ambassador to Flanders1
- Oldfield, Family1
- Ormerod, Family1
- Orreby, Family1
- Orrelle, Family1
- Oseney Abbey, Oxfordshire1
- Osgodeross Wapentake, county Yorkshire1
- Parre, Family1
- Paston, Family1
- Percy, Thomas, writer and Bishop of Dromore, 1729-18111
- Pershore Abbey, Worcestershire1
- Pilkington, Family1
- Pipe, Family1
- Plympstoke, Richard, Ambassador to Avignon1
- Poole, Family1