- Port Arthur Jubileers
- Porter Church
- Porter & Dolly
- Porter Family
- Porter Hall, TN
- Porter Howell
- Porter Waggoner
- Porter Wagoner
- Posey Hill
- Posey Rorer
- Positive Message
- Possessed by Paul James
- Possum County Choir
- PossumHaw
- Post Oak Savannah
- Postmaster Generals
- Poullard, Poullard & Garnier
- Poverty Line Old Time Band
- Povertyneck Hillbillies
- Powder River Jack
- Power of County
- Pozo-Seco Singers
- Prairie Oyster
- Prairie Ramblers
- Prairie Serenade
- Prarie Oyster
- Predators
- Premier Accordion Band
- Prentiss Varnon
- Preston Camp, Jr.
- Preston Reed
- Preston Ward
- Price Mitchell
- Primrose Circus
- Prince Albert Hunt's Texas Ramblers
- Prison Mattress
- Probable Cause
- Psychodillo
- Psychograss
- PT Gazell
- Puck Darlington
- Pufferfish
- Pulalur Srinivasan
- Pumptown
- Pure Grain
- Pure Prairie League
- Purple Heart Highway
- Purple Mountain
- Purple Sunset
- Pushin Rope