| Portlandia Pils | Laurelwood Public House & Brewery | | 5.5% |
| Porto Gallito | Freetail Brewing Co. | Wild Ale | 7.2% |
| Ports Pale Ale | Valley Brewing Company | American Pale Ale | 4.3% |
| Portside Porter | Beerbliotek | | |
| Portsmouth 90 Shilling Scotch Ale | Portsmouth Brewery | Scotch Ale / Wee Heavy | 9.5% |
| Portsmouth Lager | Smuttynose Brewing Co. | | 5.1% |
| Portsmouth Oatmeal Stout | Portsmouth Brewery | Oatmeal Stout | 6.0% |
| Portsmouth Pale | Bull & Bush Pub & Brewery | American Pale Ale | |
| Portuguese Brandy Barrel Aged Dark Lord | Three Floyds Brewing | Russian Imperial Stout | |
| Posca Rustica | Brasserie Dupont | Gruit / Ancient Herbed Ale | 8.0% |
| Poseidon Imperial Stout | Fish Brewing Company & Fish Tail Brewpub | American Stout | |
| Positive Contact | Dogfish Head Craft Brewery | | |
| Possession Porter | Diamond Knot Brewery & Alehouse | American Porter | 5.6% |
| Post Alley Porter | Pike Pub and Brewery | | |
| Post Colonial | Hopfenstark Brewery | American IPA | 6.0% |