| Pagosa Folk ‘n Bluegrass | Pagosa Springs | CO | United States | June | Bluegrass and folk music |
| Palatka Bluegrass Festival | Palatka | FL | United States | February | Bluegrass |
| Palisade Bluegrass & Roots Festival | Palisade | CO | United States | June | Bluegrass and roots music |
| Palm Coast Songwriting Festival | Palm Coast | FL | United States | May | Singer-songwriter, Americana, folk |
| Panama Songwriters Festival | Panama City | FL | United States | November | Singer-songwriter, Americana, folk |
| Papa Joe’s Banjo-B-Que Music Fest | Evans | GA | United States | October | Bluegrass |
| Park City Folk Festival | Park City | UT | United States | August | Primarily folk, with strong representation of Americana, singer-songwriter, and roots music. This festival offers a diverse lineup within the folk genre, including Americana influences. |
| Parkfield Bluegrass Festival | Parkfield | CA | United States | May | Bluegrass |
| Pat Strawhun Memorial Winter Bluegrass Festival | Eureka | MO | United States | January | Bluegrass |
| Patriotic Festival | Norfolk | VA | United States | May | Country |
| Payson Fiddle & Food Truck Festival | Payson | AZ | United States | September | Bluegrass |
| Peace, Love & Union Saltwater Songwriter Festival | Union | WA | United States | July | Bluegrass |
| Peacemaker Festival | Fort Smith | AR | United States | October | Country |
| Pendleton Whisky Music Fest | Pendleton | OR | United States | July | Country, Pop |
| Pensacola Beach Songwriters Festival | Pensacola Beach | FL | United States | October | Singer-songwriter, Americana, folk |
| Philadelphia Folk Festival | Upper Salford | PA | United States | August | Folk |
| Philly Music Fest | Philadelphia | PA | United States | October | Alternative, Americana, Folk, Hip Hop, Indie, Pop, Punk, Rock |
| Pickathon | Happy Valley | OR | United States | August | Bluegrass, Indie |
| Pickin in Parsons | Parsons | WV | United States | August | Bluegrass |
| Pickin’ in the Pasture | Lodi | NY | United States | August | Bluegrass |
| Pickin’ in the Pines Bluegrass & Acoustic Music Festival | Flagstaff | AZ | United States | September | Bluegrass and Acoustic Music, with potential inclusion of Americana and roots music. |
| Pickin’ in the Rockies | Loma | CO | United States | September | Bluegrass |
| Pickin’ on Picknic | St. Clair | MO | United States | July | Bluegrass |
| Pickin’ on the Plains | Colby | KS | United States | June | Bluegrass, with some elements of Cowboy/Western music |
| Pickin’ on the Pungo Bluegrass Festival | Belhaven | NC | United States | September | Bluegrass |
| Pickin’ Party at the Holiday Inn | Virginia Beach | VA | United States | March | Bluegrass |
| Pigeon Forge Bluegrass Festival | Pigeon Forge | TN | United States | September | Bluegrass |
| Pilgrimage Music Festival | Franklin | TN | United States | September | Bluegrass, Folk, Indie, Rock |
| Pleasantville Music Festival | Pleasantville | NY | United States | July | Rock, Indie, Alternative, and Other Genres |
| Plumas Homegrown Americana Festival | Quincy | CA | United States | September | Americana |
| Podunk Bluegrass Music Festival | Goshen | CT | United States | August | Bluegrass and Roots music |
| Poppy Mountain Music Festival | Morehead | KY | United States | September | Bluegrass |
| Poston Lake Bluegrass Festival & Jam | Stewart | OH | United States | July | Bluegrass |
| Prescott Bluegrass Festival | Prescott | AZ | United States | June | Bluegrass |
| Project Pabst | Portland | OR | United States | July | Alternative, Hip Hop, Indie, Rock |
