- Packard, Frank L.
- Paddleford, Clementine
- Pagels, Douglas
- Paige, Satchel – American baseball player
- Paine, Thomas – American patriot & political philosopher
- Palahniuk, Chuck – American writer
- Paley, William
- Palmer, Arnold – American golfer
- Pandita, Saskya
- Pante, Robert
- Papernick, Norm
- Paquda, Bahya Ibn
- Paracelsus, Philipus Aureolus – German (Swiss-born) alchemist & physician
- Parker, Dan
- Parker, Dorothy – American author, humorist, poet, & wit
- Parker, Ed
- Parker, Gilbert
- Parker, Marion
- Parker, Sara June
- Parker, Theodore – American Unitarian clergyman
- Parker, Trey and Matt Stone
- Parks, Gordon
- Parks, Rosa – American black civil rights leader
- Partnow, Susan
- Pascal, Blaise – French mathematician, physicist
- Pasternak, Boris – Russian novelist, poet, & translator
- Pasteur, Louis – French biologist & bacteriologist
- Patchin, Frank Gee
- Pater, Walter – English critic & essayist
- Paterculus
- Paterson, Katherine
- Paton, Alan – S. African author
- Patrick, John
- Patterson, John H.
- Patton, George S. – American general
- Pauli, Wolfgang – Swiss (Austrian-born) physicist
- Pauling, Linus – American chemist & pacifist
- Paulsen, Pat
- Pavese, Cesare – Italian author, novelist, & translator
- Pavlina, Steve
- Pavlov, Ivan – Russian physiologist
- Pavlova, Anna – Russian ballet dancer
- Payne, John Howard – American actor & dramatist
- Paz, Octavio – Mexican author & diplomat
- Peabody, Endicott – American educator
- Peale, Norman Vincent – American clergyman
- Pearce, Joseph Chilton
- Pearl, Steven
- Pearson, Hesketh
- Pearson, Lester B. – Canadian Prime Minister 1963-1968
- Peck, M. Scott
- Peck, Robert Newton
- Pedler, Margaret
- Pell, Claiborne – American Democratic politician
- Penn, William – English religious leader and colonist
- Percy, Walker
- Peres, Shimon – Israeli (Polish-born) politician
- Periander
- Pericles – Greek politician in Athens
- Perkins, Lucy Fitch
- Perlis, Alan
- Perlman, Elliot
- Perls, Fritz
- Persius – Roman satirist
- Peter, Laurence J. – American educator & writer
- Peters, Bernadette
- Peters, Charles
- Peters, Ellis
- Peters, Margaret
- Peters, Tom
- Peterson, David
- Peterson, Wilfred A.
- Petrarch – Italian humanist, lyric poet, & scholar
- Petronius, Gaius
- Petrowsky, Christina
- Pfizer, Beryl
- Ph.D., John Eliot,
- Phaedrus – Roman author of fables
- Phelps, Austin
- Phelps, William Lyon
- Phillips, David Graham
- Phillips, Emo
- Phillips, Jeanne
- Phillips, Wendell – American abolitionist
| - Phillips, William
- Phocion – Greek general & politician in Athens
- Phocylides
- Picasso, Pablo – Spanish Cubist painter
- Pickering, Thomas – American diplomat
- Pickford, Mary – American (Canadian-born) movie actress
- Piercy, Marge
- Piggy, Miss
- Pinarius
- Pindar – Greek lyric poet
- Pine, Albert
- Pinero, Arthur Wing – English dramatist
- Pirillo, Chris
- Pirsig, Robert
- Pitino, Rick
- Pitt, William
- Pittacus
- Pitzer, Gloria
- Plain, Belva
- Plath, Sylvia – American novelist & poet
- Plato – Greek author & philosopher in Athens
- Plauger, P. J.
- Plautus, Titus Maccius – Roman comic dramatist
- Player, Willis
- Pliny the Elder – Roman scholar & scientist
- Pliny the Younger – Roman author & politician
- Plomp, John J.
- Plotinus – Roman philosopher
- Plutarch – Greek biographer & moralist
- Podhoretz, Norman
- Poe, Edgar Allan – American short story author, editor, & poet
- Poincare, Henri – French mathematician & physicist
- Polignac, Melchior De
- Pollock, Jackson – American Abstract Expressionist painter
- Pollock, Robert C.
- Polybius – Greek historian
- Pool, Gail
- Poole, Mary Pettibone
- Pop, Iggy
- Popcorn, Faith
- Pope, Alexander – English poet & satirist
- Pope Julius III – Italian pope 1550-1555
- Porter, Eleanor H.
- Porter, Katherine Anne – American novelist & short story author
- Porter, Noah – American clergyman, educator, & philosopher
- Post, Laurens Van der
- Potter, Beatrix
- Potter, Elisha
- Pound, Ezra – American poet
- Pound, Roscoe – American jurist
- Poundstone, Paula
- Pourciau, Lester J.
- Powell, Adam Clayton Jr. – American politician
- Powell, Colin – American general
- Powell, Sir John
- Pratchett, Terry
- Prather, Hugh
- Preece, Sir William
- Prefontaine, Steve
- Prentice, George Dennison
- Presley, Elvis – American rock singer
- Presutti, Patricia E.
- Price, George
- Price, Leontyne
- Priest, Ivy Baker
- Priestley, J. B. – English critic, dramatist, & novelist
- Priestley, Joseph
- Prigogine, Ilya – Belgian-US (Russian-born) chemist & physicist
- Prior, Matthew – English diplomat & poet
- Pritchard, Michael
- Propertius, Sextus – Roman poet
- Protagoras – Greek philosopher
- Proust, Marcel – French novelist
- Prudden, Bonnie
- Pryor, Richard – American movie actor & comedian
- Ptahhotep, Maxims of
- Publilius Syrus
- Pugh, Emerson
- Punshon, William
- Pushkin, Alexander
- Puzo, Mario – American novelist & screenwriter
- Pyle, Howard
- Pyrrhus – king of Epirus 306b-302b, 297b-272b
- Pythagoras – Greek mathematician, philosopher, & scientist
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