Arizona - Area of significance: Architecture
| Tubac Townsite Historic District |
| Tuba Trading Post |
| Tucson Medical Center |
| Tucson Mountain Park Historic District |
| Tucson Veterans Administration Hospital Historic District |
| Tucson Warehouse Historic District |
| Tumacacori Museum |
| Tumacacori National Monument |
| Tuzigoot Developed Area Historic District |
| Tuzigoot Museum |
| Tuzigoot National Monument Archeological District |
| Tweed, Judge Charles Austin, House |
| 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 Agricultural Center |
| University of Arizona Campus Historic District |
| University Park Historic District |
| Upton, George B., House |
| U.S. Courthouse and Federal Office Building |
| US Custom House |
| USDA Tucson Plant Materials Center |
| USFS Fort Valley Experimental Forest Station Historic District |
| U.S. Inspection Office, Morley Gate-Nogales, Arizona |
| U.S. Inspection Station-Douglas, Arizona |
| U.S. Inspection Station-Sasabe, 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 Branch No. 10 |
| Valley National Bank Building |
| Valley of the Moon |
| Valley Plumbing & Sheet Metal |
| Van Marter Building |
| Van Schaick, Nellie Mae Kellogg, House |
| Vasquez House |
| Velasco House |
| Vernetta Hotel |
| Victoria Place Historic District |
| Vienna Bakery |
| Viewpoint |
| Villa Catalina |
| Villa del Coronado |
| Villa Verde Plat A and Villa Verde Plat B Historic District |
| Volunteer Lookout Cabin |
| Vradenburg, George H., House |
| Walker, Harry, House |
| Walker, O. E., House |
| Walnut Creek Ranger Station |
| Ward's Variety Store |
| Warner, P. C., First House |
| Water Canyon Administrative Site |
| Webb Peak Lookout Tower |
| Welker, James R., House |
| Wells House |
| Welnick Arcade Market and Liefgreen Seed Company Building |
| West Peak Lookout Tower |
| West Prescott Historic District |
| West Second Street Historic District |
| West Side-Clark Addition Historic District |
| West University Historic District |
| Westwood Village and Estates Historic District |
| Whipple Heights Historic District |
| White, Dr. Toler R., House |
| White, E. M., Dairy Barn |
| White House |
| Wickenburg-Boetto House |
| Wickenburg High School and Annex |
| Wickenburg High School Gymnasium |
| Wickenburg Ice and Cold Storage |
| 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 |
| Willo Historic District |
| Willo Historic District |
| Wilson, Betty-Jean, House |
| Wilson, Charles, Jr., House |
| Wilson, C. J. (Blinky), House |
| Wilson, J. C., House |
| Wilson, J. Mark, House |
| Windsor Square Historic District |
| Wingfield, Hank and Myrtle, Homestead |
| Wingfield, Robert W., House |
| Winslow Commercial Historic District |
| Winslow Residential Historic District |
| Winterhaven Historic District |
Data from United States Park Service and Wikidata
