List of National Natural Landmarks in Arizona
From the list of National Natural Landmarks, these are the National Natural Landmarks in Arizona. There are 10 in total.
| Name | Image | Date | Location | County | Ownership | Description |
| Barfoot Park | Cochise | Federal | One of the best U.S. examples of Madrean-influenced ponderosa pine forests. | |||
| Barringer Meteor Crater | Coconino | Private | The world's first identified meteor crater. | |||
| Canelo Hills Cienega Reserve | Santa Cruz | Private | Notable for the extremely rare Canelo Ladies Tresses Orchid and the Gila chub. | |||
| Comb Ridge | Navajo | Communal lands | The only known location for tritylodont fossils in North America. | |||
| Grapevine Mesa | Mohave | Federal | The best existing display of Joshua trees in the United States. | |||
| Kaibab Squirrel Area | Coconino | Federal | Illustrative of the habitat for the Kaibab squirrel. | |||
| Onyx Cave | Santa Cruz | Federal | Considered to be the finest cave in Arizona. | |||
| Patagonia-Sonoita Creek | Santa Cruz | Private | An example of a cottonwood-willow riparian forest and one of the last permanent stream-bottom habitat areas in southern Arizona. | |||
| Ramsey Canyon | Cochise | Private | A stream-cut, vertical-sided gorge. | |||
| Willcox Playa | Cochise | Federal | The largest "dry lake" in Arizona. |