| Nom du Parc | Etat/Ville | Type du Parc |
|---|---|---|
| Nansen Wayside Park | New Hampshire (Milan) | State Park |
| Nāpali Coast State Park | Hawaii (Kauaʻi, Kalalau Beach) | State Park |
| Natchez National Historical Park | Mississippi (Natchez) | National Historical Park |
| Natchez State Park | Mississippi (Natchez) | State Park |
| Natchez Trace National Scenic Trail | Mississippi (Natchez) | National Scenic Trail |
| Natchez Trace Parkway | Alabama (L'Alabama, Mississippi et le Tennessee) | Parkway |
| Natchez Trace State Park | Tennessee (Wildersville) | State Park |
| Nathan Bedford Forrest State Park | Tennessee (Eva) | State Park |
| National Capital Parks-Central | Columbia (district) (Washington) | |
| National Capital Parks-East | Columbia (district) (Washington) | |
| National Mall | Columbia (district) (Washington) | |
| National Park of American Samoa | (Pago Pago, American Samoa) | |
| National Parks of New York Harbor | Oklahoma (Au nord du New Jersey et de New York City) | |
| National World War II Memorial | Columbia (district) (Washington) | Memorial |
| Natural Bridge Battlefield Historic State Park | Floride (Tallahassee) | State Park |
| Natural Bridge State Park | Massachusetts (North Adams) | State Park |
| Natural Bridge State Park | Virginie (Natural Bridge) | State Park |
| Natural Bridge State Park | Wisconsin (North Freedom) | State Park |
| Natural Bridges National Monument | Utah (Blanding) | National Monument |
| Natural Falls State Park | Oklahoma (Colcord) | State Park |
| Natural Tunnel State Park | Virginie (Duffield) | State Park |
| Nauvoo State Park | Illinois (Nauvoo) | State Park |
| Navajo Lake State Park | Nouveau Mexique (Navajo Dam) | State Park |
| Navajo National Monument | Arizona (Kayenta) | National Monument |
| Navajo State Park | Colorado (Arboles) | State Park |
| Navarro River Redwoods State Park | Californie (Albion) | State Park |
| Negwegon State Park | Michigan (Harrisville) | State Park |
| Nehalem Bay State Park | Oregon (Tillamook) | State Park |
| Nelson Dewey State Park | Wisconsin (Cassville) | State Park |
| Nelson Kennedy Ledges State Park | Ohio (Nelson Township) | State Park |
| Nerstrand Big Woods State Park | Minnesota (Nerstrand) | State Park |
| Nescopeck State Park | Pennsylvanie (Drums) | State Park |
| Neshaminy State Park | Pennsylvanie (Bensalem) | State Park |
| New Bedford Whaling National Historical Park | Massachusetts (New Bedford) | National Historical Park |
| New Discovery State Park | Vermont (Marshfield) | State Park |
| New Germany State Park | Maryland (Grantsville) | State Park |
| New Glarus Woods State Park | Wisconsin (New Glarus) | State Park |
| New Jersey Coastal Heritage Trail Route | New Jersey (New Glarus) | |
| New Jersey Pinelands National Reserve | New Jersey (Au sud du New Jersey) | National Reserve |
| New Orleans Jazz National Historical Park | Louisiane (New Orleans) | National Historical Park |
| New River Gorge National Park & Preserve | Virginie-Occidentale (Hinton, Beckley, Glen Jean et Fayetteville) | National Park & Preserve |
| New River State Park | Caroline du Nord (Piney Creek) | State Park |
| New River Trail State Park | Virginie (Max Meadows) | State Park |
| Newaygo State Park | Michigan (Newaygo) | State Park |
| Newport State Park | Wisconsin (Ellison Bay) | State Park |
| Newspaper Rock | Utah (Monticello) | State Historic Park |
| Newton Hills State Park | Dakota du Sud (Canton) | State Park |
| Newtown Battlefield State Park | New York (Elmira) | State Park |
| Newtowne Neck State Park | Maryland (Scotland) | State Park |
| Niagara Falls State Park | New York (Niagara Falls) | State Park |
| Nickerson State Park | Massachusetts (Brewster) | State Park |
| Nicodemus National Historic Site | Kansas (Nicodemus) | National Historic Site |
| Nine Eagles State Park | Iowa (Davis City) | State Park |
| Ninety Six National Historic Site | Caroline du Sud (Ninety Six) | National Historic Site |
| Niobrara National Scenic River | Nebraska (Valentine) | National Scenic River |
| Niobrara State Park | Nebraska (Niobrara) | State Park |
| Niquette Bay State Park | Vermont (Colchester) | State Park |
| Nisqually State Park | Washington (Eatonville) | State Park |
| Nissequogue River State Park | New York (Kings Park) | State Park |
| Noatak National Preserve | Alaska (Kotzebue) | National Preserve |
| Nockamixon State Park | Pennsylvanie (Quakertown) | State Park |
| Nolin Lake State Park | Kentucky (Mammoth Cave) | State Park |
| Nolte State Park | Washington (Enumclaw) | State Park |
| Norris Dam State Park | Tennessee (Rocky Top) | State Park |
| North Bend State Park | Virginie-Occidentale (Cairo) | State Park |
| North Cascades National Park | Washington (Concrete à l'est et Twisp à l'ouest) | National Park |
| North Country National Scenic Trail | Michigan (De New York au Dakota du nord) | National Scenic Trail |
| North Hero State Park | Vermont (North Hero) | State Park |
| North Higgins Lake State Park | Michigan (Roscommon) | State Park |
| North Peninsula State Park | Floride (Ormond by the Sea) | State Park |
| North Point State Park | Maryland (Edgemere) | State Park |
| North Sterling State Park | Colorado (Sterling) | State Park |
| North Toledo Bend State Park | Louisiane (Zwolle) | State Park |
| Northwood Meadows State Park | New Hampshire (Northwood) | State Park |
| Nyack Beach State Park | New York (Upper Nyack) | State Park |
