District of Columbia - Criteria: C (architecture/engineering)
| Town Center East |
| Traveling Carousel |
| Trinity Towers |
| Truck Company F |
| Truck House No. 13 |
| True Reformer Building |
| Tucker House and Myers House |
| Tudor Place |
| Twin Oaks |
| Uline Ice Company Plant and Arena Complex |
| Union Station Plaza and Columbus Fountain |
| Union Trust Building |
| United Brotherhood of Carpenters and Joiners-Local 132 |
| United Mine Workers of America |
| United States Daughters of 1812, National Headquarters |
| U.S. Capitol Gatehouses And Gateposts |
| US Chamber of Commerce Building |
| U.S. Civil Service Commission Building |
| US Courthouse-District of Columbia |
| U.S. Court Of Military Appeals |
| U.S. Department of Agriculture Cotton Annex |
| US Department of Agriculture South Building |
| U.S. Department of Housing and Urban Development |
| U.S. Department of State Building |
| US Department of the Interior Building |
| U.S. Department of the Treasury |
| US General Accounting Office Building |
| U.S. Marine Corps Barracks and Commandant's House |
| U.S. National Arboretum |
| U.S. Post Office Department Mail Equipment Shops |
| US Public Health Service Building |
| U.S. Tax Court |
| Van Ness Mausoleum |
| Vigilant Firehouse |
| Virginia Interlocking Control Tower |
| Waggaman-Ray Commercial Row |
| Walde-Carter House |
| Walsh Stable |
| Walter Reed Army Medical Center (WRAMC) Historic District |
| Warder-Totten House |
| Wardman Park Annex and Arcade |
| Wardman Row |
| Washington and Georgetown Railroad Car House |
| Washington Aqueduct |
| Washington Canoe Club |
| Washington Club |
| Washington Heights Historic District |
| Washington, Margaret Murray, School |
| Washington Monument |
| Watterston House |
| Webster, Daniel, Memorial |
| Webster, Marjorie, Junior College Historic District |
| Western High School |
| Westory Building |
| Wetzell-Archbold Farmstead |
| Wetzel, Margaret, House |
| Wheat Row |
| Whitelaw Hotel |
| White-Meyer House |
| Whittemore House |
| Wiley, Emily, House |
| Willard Hotel |
| Wilson, James Ormand, Normal School |
| Wire Building |
| Woodhull, Maxwell, House |
| Woodrow Wilson High School |
| Woodward and Lothrop Service Warehouse |
| Wyoming Apartments |
| Yale Steam Laundry |
Data from United States Park Service and Wikidata
