- The Plot -- The Plugz
- The Pluma Davis Orchestra -- The Plutonics
- The Plymouth Music Series'Ensemble Orchestra -- The P.O.D. (Prince of Darkness)
- The Pods -- The Poets
- The Poets A.K.A. Sealand Poets -- The Pointless Sisters
- The Poise Rite -- The Polar Bear MC's
- The Polaroid Truth -- The Politician
- The Politicians -- The Polyglots
- The Polyjesters -- The Pomonas
- The Pond -- The Pontani Sisters
- The Pontiac Brothers -- The Poor
- The Poor (90's) -- The Pop
- The Pop Allstars -- The Popdudes
- The Pope -- The Poppin'' Mollies
- The Poppin' Wheelies -- The Porch Pistols
- The Porch Rockers -- The Port Angels
- The Port Huron Statement -- The Portsmouth Choir
- The Portsmouth Sinfonia -- The Possibles
- The Possum Hunters -- The Postman Syndrome
- The Postmarks -- The Potions
- The Potomac Accord -- The Power of Suggestion
- The Power Plant -- The Poww Brothers
- The Poxy Boggards -- The Prague Philharmonic Orchestra
- The Prague Symphony Orchestra -- The Pranks