Arizona - Criteria: C (architecture/engineering)
| Sycamore Ranger Station |
| Taliesin West |
| Talley, Hugh, House |
| Talley, William, House |
| Tater Point Lookout Tree |
| Telephone Hill Lookout Tree |
| Tempe Butte |
| Tempe Concrete Arch Highway Bridge |
| Tempe Hardware Building |
| Temple Beth Israel |
| Temple Historic District |
| Templeton, Benjamin, House |
| Three Mediterranean Cottages on Pajarito Street |
| Tipover Lookout Tree |
| Titus, Frank, House |
| Todd, Charles S., House |
| Toltec Lodge |
| Tombstone City Hall |
| Tombstone Courthouse |
| Tonto National Monument Visitor Center |
| Tovrea Castle |
| Trans-Canyon Telephone Line, Grand Canyon National Park |
| Treu, John, House |
| Treu, Max, Territorial Meat Company |
| Truman-Randall House |
| Tubac Townsite Historic District |
| Tuba Trading Post |
| Tumacacori Museum |
| Tumacacori National Monument |
| Tusayan Lookout Tree |
| Tuzigoot Museum |
| Tuzigoot National Monument Archeological District |
| Tweed, Judge Charles Austin, House |
| Two Spot Logging Train |
| Type A at 2101 E. Water St |
| Type B at 2019 E. Water St |
| Tyrell House |
| Union Station |
| University Heights Elementary School |
| University of Arizona Campus Historic District |
| Upton, George B., House |
| US Custom House |
| USDA Tucson Plant Materials Center |
| U.S. Inspection Office, Morley Gate-Nogales, Arizona |
| U.S. Post Office |
| U.S. Post Office and Courthouse |
| US Post Office and Courthouse-Globe Main |
| US Post Office and Courthouse-Prescott Main |
| US Post Office and Customs House-Douglas Main |
| US Post Office and Immigration Station-Nogales Main |
| US Post Office-Yuma Main |
| Valley National Bank Building |
| Valley Plumbing & Sheet Metal |
| Van Marter Building |
| Van Schaick, Nellie Mae Kellogg, House |
| Vasquez House |
| Velasco House |
| Verde River Bridge |
| Verde River Sheep Bridge |
| Vernetta Hotel |
| Villa Catalina |
| Villa del Coronado |
| Volunteer Lookout Cabin |
| Vradenburg, George H., House |
| Walker, Harry, House |
| Walker, O. E., House |
| Walnut Canyon Bridge |
| Walnut Canyon Dam |
| Walnut Creek Bridge |
| Walnut Creek Ranger Station |
| Ward's Variety Store |
| Water Canyon Administrative Site |
| Water Reclamation Plant |
| Webb Peak Lookout Tower |
| Welker, James R., House |
| Wells House |
| Welnick Arcade Market and Liefgreen Seed Company Building |
| West Peak Lookout Tower |
| White, Dr. Toler R., House |
| White, E. M., Dairy Barn |
| White House |
| Wickenburg-Boetto House |
| Wickenburg High School and Annex |
| Wickenburg High School Gymnasium |
| Wickersham, David, House |
| Wigwam Village #6 |
| Wilbur Street Historic District |
| Wilbur, Walter, House |
| Wilder House |
| Willard House |
| Willcox Women's Club |
| Williams, Dan, House |
| Williams, E. B., House |
| Williams Historic Business District |
| Williams Residential Historic District |
| Wilson, Betty-Jean, House |
| Wilson, C. J. (Blinky), House |
| Wilson, J. C., House |
| Wilson, J. Mark, House |
| Wingfield, Hank and Myrtle, Homestead |
Data from United States Park Service and Wikidata
