Wisconsin - Significance region: Local
| Tripp Memorial Library and Hall |
| Trogner, George W. and Sarah, House |
| Trout Point Logging Camp |
| Trunck, Joseph and Augusta, Boathouse |
| Tufts, William B. and Jennie, House |
| Turck, Christian, House |
| Two Rivers Post Office |
| Tygert Street Historic District |
| Ullius, Fred W., Jr., House |
| Underwriters Exchange Building |
| Union Auto Company |
| Union Depot |
| Union House Hotel |
| Union National Bank |
| United Laymen Bible Student Tabernacle |
| United States Post Office and Court House |
| United States Post Office and Federal Courthouse |
| United Unitarian and Universalist Church |
| University Heights Historic District |
| University Hill Farms Historic District |
| University of Wisconsin Field House |
| University Presbyterian Church and Student Center |
| Unpleasant Ridge |
| Upham House Historic District |
| Upper Main Street Historic District |
| Upper Wakanda Park Mound Group |
| Uptown Theater |
| US Post Office and Courthouse |
| US Post Office, Former |
| US Post Office-Menasha |
| US Post Office-Racine Main |
| Van Altena, William, House |
| Van Brunt, Daniel C., House |
| Van Brunt Memorial School |
| Van Buren, Sarah Belle, House |
| Van Devan, G. B., House |
| Vangindertahlen, Louis, House |
| Van Orden, Jacob, House |
| Van Ostrand, Dewitt Clinton, House |
| Vaughn's Hall and Blacksmith Shop |
| Vernon County Normal School |
| Vilas, Joseph, Jr., House |
| Vilas Park Mound Group |
| Village Park Bandstand |
| Villa Laun |
| Villa Von Baumbach |
| Vincent, James, House |
| Vincent-McCall Company Building |
| Vining, Gorham, P., House |
| Viroqua Downtown Historic District |
| Visitation Convent Complex |
| Vocke, Frank, Octagonal Barn |
| Voigt, Jacob, House |
| Vorous General Store |
| Voss' Birchwood Lodge |
| Wadhams Gas Station |
| Wahle-Laird House |
| Waite Grass Carpet Company |
| Wajiwan ji Mashkode Archeological District |
| Wakefield Hall |
| Wakeley's Tavern |
| Wakely Road Bridge |
| Walczak-Wontor Quarry Pit Workshop |
| Walker, Harry B., House |
| Walker Manufacturing Company-Ajax Plant |
| Walker's Point Historic District |
| Wallace-Jagdfeld Octagon House |
| Wallila Farm |
| Wall, Thomas R., Residence |
| Walser, Ulrich, House |
| Walter-Heins House |
| Walter, Luther and Anna, Boathouse |
| Wandawega Inn |
| Ward District No. 3 Schoolhouse |
| Warner, Anson, Farmstead |
| Warren, Stephen, House |
| Washburn Public Library |
| Washington Avenue Historic District |
| Washington Avenue Neoclassical Historic District |
| Washington Block |
| "Washington County ""Island"" Effigy Mound District" |
| Washington Elementary School |
| Washington Elementary School |
| Washington Park Clubhouse |
| Washington School |
| Washington Street Historic District |
| Waterloo Downtown Historic District |
| Waterman, S. H., House |
| Water Street Commercial Historic District |
| Water Street Commercial Historic District |
| Water Street Historic District |
| Water Tower |
| Waterworks Building |
| Watson Street Commercial Historic District |
| Waubesa School |
| Waukesha Post Office |
| Waukesha Pure Food Company |
| Waunakee Railroad Depot |
| Waupaca Free Public Library |
| Waupaca Post Office |
Data from United States Park Service and Wikidata
