Name
- O'Gorman, Mervyn Joseph Pius, writer on aeronautics and traffic problems2
- O'Moloney, William, of the Union Internationale des Associations pour la Société des Nations2
- Onslow, Richard William Alan, 5th Earl of Onslow, diplomat and politician, 1876-19452
- Osusky, Stéfán, Dr Czech diplomatist2
- Page, Walter Hines, US diplomatist2
- Paget, Almeric Hugh, Baron Queenborough, 6th son of General Lord Alfred Henry Paget2
- Paish, George2
- Palmstierna, Erik Kule, Baron Swedish diplomatist2
- Parnell, Nancy Stewart, Miss of the League of Nations Union2
- Partington, C F, produce broker2
- Paton, Herbert James, Professor of Moral Philosophy at Oxford2
- Peake, Osbert, MP2
- Pedestrians' Association2
- Peel, Arthur George Villiers, politician and writer, 1869-19562
- Peel, Sidney Cornwallis, Baronet2
- Percy, Eustace Sutherland Campbell, Baron Percy of Newcastle2
- Phillips, John Searles Ragland, journalist2
- Picture Post, newspaper, Great Britain and Ireland2
- Plaistowe, Cuthbert, Sec Labour Co-Partnership Association2
- Platt, Wilfrid, writing from London SE272