Name
- O'Brien, Thomas1
- O'Kelly, C-R-1
- Olivier, François1
- Osborne, Jeremiah1
- Ottley, William Young, Keeper of Prints, British Museum, 1771-18361
- Pace, Richard, senior1
- Pack, Charles, of Add MS 365161
- Palmer, Elizabeth1
- Panton, Thomas, of Add MS 364961
- Payne, Edward, of Add MS 364931
- Penn, J-1
- Pennington, William, of Add MS 365031
- Perkins, Richard, junior1
- Pettigrew, Thomas Joseph, surgeon and antiquary1
- Philipe, Françoise1
- Philpot, M-1
- Phippen, Samuel1
- Phipps, Henry, 1st Earl of Mulgrave1
- Pitt, George, 2nd Baron Rivers1
- Praed, William Tyringham, MP1