Wild Nephin National Park
- Historically Known As: Ballycroy National Park
- Vicinity: West Region, Owenduff-Nephin Mountains northwest County Mayo
- Irish County of County Mayo in Province of Connacht
- As Noted In: Irish National Park, National Parks and Wildlife Service (Ireland)
- As Noted In: Notable Birding Area, Phantom
Located in the Owenduff-Nephin Mountains area of northwest County Mayo, Wild Nephin National Park in the Republic of Ireland is notable as one of the largest expanses of peatland in Europe. Atlantic blanket bog provides a unique habitat for diverse flora and fauna. - AsNotedIn