| Point of Rocks Stage Station | WyomingHeritage.org, Wyoming State Historic Preservation Office |
| Point of Rocks Stage Station | |
| Poison Spring, Oregon Trail site of | WyoHistory.org |
| Pollock, Jackson | John Clayton |
| Pony Express route, central Wyoming | |
| Pony Express, Buffalo Bill and | Tom Rea |
| Post, Amalia grave | |
| Post, Amalia, women’s rights activist | D. Claudia Thompson |
| POW camps, World War II Wyoming | Cheryl O’Brien |
| Powder River Basin | Emilene Ostlind |
| Powder River Expedition, 1865 | Ellis Hein |
| Powell, John Wesley | Rebecca Hein |
| Powell, Wyoming | Jeremy Johnston |
| Prohibition in Wyoming | Tom Rea |
| Prospect Hill Interpretive Area | |
| Prospect Hill, Oregon Trail site of | WyoHistory.org |
| Public television, Wyoming | Doug McInnis |
| Pumpkin Buttes | |
