- Parsons, Andrew (Folk musician)1
- Partch, Harry, 1901-19741
- Passaro, Joseph1
- Paul, Les2
- Payne, Dorothy1
- Peck, Russell, 1945-20091
- Pedersen, Ingeborg3
- Peebles, Ann1
- Peel, David, 1942-20172
- Pegago, Donald1
- Pellegrino, Ronald1
- Penderecki, Krzysztof, 1933-20201
- Penn, William, 1943-1
- Pennario, Leonard1
- Perera, Ronald1
- Pergolesi, Giovanni Battista, 1710-17361
- Perle, George, 1915-20091
- Perlis, Vivian1
- Perras, John4
- Perry, Julia, 1924-19792
- Persichetti, Vincent, 1915-19871
- Persky, Stanley (Clarinetist)1
- Peskanov, Mark1
- Petrin, Umberto1
- Pettis, Ashley, 1892-3
- Pfeiffer, Bruce Brooks1
- Philadelphia Orchestra1
- Philharmonic Hall (New York, N.Y.)1
- Philips, Peter, 1561-16281
- Phillips, Barre2
- Phillips, Bill1
- Phillips, Burrill4
- Phillips, Karen, 1942-1
- Phillips, Peter, 1930-1
- Phillips, Robert (Pianist)1
- Phipps, William, 1922-20181
- Phoenix Quartet1
- Phoenix Symphony46
- Piaf, Édith, 1915-19631
- Piatigorsky, Gregor, 1903-19761
- Pilgrim, Neva2
- Piltz, Hans-Karl1
- Pinkham, Daniel1
- Piston, Walter, 1894-19763
- Pittman, James T1
- Pittsburgh Theological Seminary1
- Pixley-Rothschild, Dorothy7
- Pizzarelli, Bucky2
- Podolski, Michel3
- Polin, Claire C. J1
- Polisi, Joseph1
- Politis, James, 1921-19761
- Pollikoff, Max8
- Pollock, Robert, 1946-1
- Pommers, Leon1
- Ponce, Walter2
- Porter, Karl Hampton, 1939-1
- Porter, Lois, 1905-19801
- Porter, Quincy, 1897-19663
- Portland Symphony Orchestra (Portland, Me.)1