British and Irish History: Biographies
- Neil Gordon Kinnock
- Neville Chamberlain
- Offa
- Oliver Cromwell
- Orde Charles Wingate
- Owain Glyndwr
- Owain Gwynedd
- Owen Glendower
- Owen Roe ONeill
- Owen Tudor
- Patrick Henry Pearse
- Patrick Sarsfield earl of Lucan
- Paul Cullen
- Pelagius
- Penda
- Perkin Warbeck
- Peter Carington 6th Baron Carrington
- Peter des Roches
- Philip Yorke 1st earl of Hardwicke
- Piers Gaveston