Oregon - Criteria: C (architecture/engineering)
| Troutdale Methodist Episcopal Church |
| Troy Laundry Building |
| Tualatin Academy |
| Tudor Arms Apartments |
| Tunturi, Fred, House |
| Turner, Frederick, Fourplex |
| Umatilla County Library |
| Umatilla Masonic Lodge Hall |
| Umpqua River Bridge No. 01822 |
| Union Creek Historic District |
| Union Main Street Historic District |
| Union Station |
| Union Street Railroad Bridge and Trestle |
| Uniontown-Alameda Historic District |
| United Presbyterian Church and Rectory |
| United Presbyterian Church of Shedd |
| United States Post Office (Scappoose) |
| Unity Bridge |
| Unity Ranger Station |
| University Club |
| University of Oregon Library and Memorial Quadrangle |
| University of Oregon Museum of Art |
| Upper Sandy Guard Station Cabin |
| US Coast Guard Station-Tillamook Bay |
| U.S. Courthouse |
| U.S. Customhouse |
| US National Bank Building |
| US Naval Air Station Dirigible Hangar B |
| U.S. Post Office |
| U.S. Post Office |
| US Post Office |
| US Post Office |
| U.S. Post Office and Courthouse |
| US Post Office and Courthouse |
| US Post Office and Custom House |
| U.S. Post Office and Federal Building |
| US Post Office-St. John's Station |
| USS BLUEBACK (submarine) |
| USS LCI-713 (Landing Craft) |
| Vale Drug Store |
| Vale Hotel and Grand Opera House |
| Van Dellen, John and Murta, House |
| Van Vleet, Lewis and Elizabeth, House |
| Vetter, Herman, House |
| View Point Inn |
| Villard Hall |
| Villa St. Clara Apartments |
| Villa St. Rose |
| Vinsonhaler Blacksmith Shop |
| Visitors Information Center |
| Vista Avenue Viaduct |
| Vista House |
| Vonder Ahe, Fred, House and Summer Kitchen |
| Waggener, JS and Melinda, Farmstead |
| Waldo Block |
| Wallace, John M., Fourplex |
| Wallowa County Courthouse |
| Wallowa Ranger Station |
| Warnock, William P., House |
| Warren, Daniel Knight, House |
| Washburne Historic District |
| Watchman Lookout Station No. 68 |
| Watkins, J. F., House |
| Watson, John N. and Cornelia, House |
| Watzek, Aubrey R., House |
| Waucoma Hotel |
| Waverley Country Club Clubhouse |
| Webb, Alfred, Investment Properties |
| Weinhard Brewery Complex |
| Weist Apartments |
| Wells Fargo Building |
| Wells-Guthrie House |
| Wells, William Bittle, House |
| Wendling Bridge |
| Wentz, Harry F., Studio |
| Wesely, Joseph, House and Barn |
| West Coast Woods Model Home |
| West Hall |
| West, Nathaniel, Buildings |
| West Salem City Hall, Old |
| West's Block |
| West Union Baptist Church |
| Whaleback Snow-Survey Cabin |
| Wheeldon Apartment Building |
| Wheeler, Cora Bryant, House |
| Wheeler, James E., House |
| Whidden-Kerr House and Garden |
| White, Isam, House |
| Whiteside, Charles and Ibby, House |
| Whiteside Theatre |
| Whitney and Gray Building and Jake's Famous Crawfish Restaurant |
| Wienecke, Emil and Ottilie, House |
| Wilcox Building |
| Wildcat Creek Bridge |
| Willamette Falls Locks |
| Willamette National Cemetery |
| Willamette River (Oregon City) Bridge (No. 357) |
| Willamette Valley and Coast Railroad Depot-Corvallis |
| Williams, George H., Townhouses |
| Willow Prairie Cabin |
Data from United States Park Service and Wikidata
