| Nom du Parc | Etat/Ville | Type du Parc |
| Kalaupapa National Historical Park | Hawaii (Kalaupapa) | National Historical Park |
| Kaloko-Honokohau National Historical Park | Hawaii (Kailua-Kona) | National Historical Park |
| Kasha-Katuwe Tent Rocks National Monument | Nouveau Mexique (Cochiti Pueblo) | National Monument |
| Katmai National Park & Preserve | Alaska (King Salmon) | National Park & Preserve |
| Kenai Fjords National Park | Alaska (Seward) | National Park |
| Kenilworth Park & Aquatic Gardens | Columbia (district) (Washington) | Park & Aquatic Gardens |
| Kennesaw Mountain National Battlefield Park | Georgie (Kennesaw) | National Battlefield Park |
| Keweenaw National Historical Park | Michigan (Calumet) | National Historical Park |
| Kings Canyon National Park | Californie (In the southern Sierra Nevada in Tulare and Fresno counties) | National Park |
| Kings Mountain National Military Park | Caroline du Sud (Blacksburg) | National Military Park |
| Klondike Gold Rush - Seattle Unit National Historical Park | Washington (Seattle) | National Historical Park |
| Klondike Gold Rush National Historical Park | Alaska (Skagway) | National Historical Park |
| Knife River Indian Villages National Historic Site | Dakota du Nord (Stanton) | National Historic Site |
| Kobuk Valley National Park | Alaska (Kotzebue) | National Park |
| Kodachrome Basin State Park | Utah (Cannonville) | State Park |
| Korean War Veterans Memorial | Columbia (district) (Washington) | Memorial |
