Arkansas - Criteria: C (architecture/engineering)
| Wabash Alloys Locomotive |
| Wabbaseka Methodist Episcopal Church, South |
| Wade Building |
| Wade-Heerwagen House |
| Wadley, J.K., House |
| Waldo Water Tower |
| Waldron Commercial Historic District |
| Walker, Evelyn Gill, House |
| Walker Homestead Historic District |
| Walker House |
| Walker, Otha, Homestead |
| Walker, Thomas, House |
| Walker, Vol, Library-University of Arkansas, Fayetteville |
| Wallace Bridge |
| Wallace Building |
| Walls House |
| Walls, James A., House |
| Walnut Grove Methodist Church |
| Walnut Grove Presbyterian Church |
| Walnut Ridge Commercial Historic District |
| Walnut Ridge Post Office, Old |
| Walton, Dr. James Wyatt, House |
| Wanslow, Robert, House |
| Ward, Earl and Mildred, House |
| Ward-Hays House |
| Ward-Jackson House |
| Ward's Crossing Bridge |
| Ward-Stout House |
| Ward, Zeb, Building |
| War Eagle Bridge |
| War Eagle Creek Bridge |
| Warren and Ouachita Valley Railway Station |
| Warren Brick Streets |
| Warren Post Office |
| Warrens Bridge |
| Washburn House |
| Washington County Courthouse |
| Washington County Jail |
| Washington County Road 35 Bridge |
| Washington, George Berry, Memorial |
| Washington Historic District |
| Washington Street Historic District |
| Washington-Willow Historic District |
| Wasson House |
| Waterman-Archer House |
| Waters, Charles Clary, House |
| Waters House |
| Waterside Street Bridge |
| Watkins House |
| Watkins, Tom, House |
| Watson House |
| Watson-Sawyer House |
| Watson, William Henry, Homestead |
| Watts, Dr. J. D., House |
| Weaver, Lee, House |
| Weber House |
| Welch, William, House |
| Weldon Gin Company Historic District |
| Wesley Chapel |
| West 7th Street Historic District |
| West-Blazer House |
| Westbrooke, Edward L., Building |
| West Church Street Historic District |
| West Dickson Street Commercial Historic District |
| West House |
| West James Street Overpass |
| West Main Street Residential Historic District |
| West Memphis Commercial Historic District |
| West Richwoods Church & School |
| West Washington Avenue Historic District |
| Wheat House |
| Whisinant, Albert, House |
| White-Baucum House |
| White County Courthouse |
| White House |
| White, John W., House |
| White River Bridge at Elkins |
| White, W. J., House |
| Whitman, Merle, Tourist Cabin |
| Whitmarsh, Alvah Horace, House |
| Whittington Park Historic District |
| Widner-Magers Farm Historic District |
| Wiederkehr Wine Cellar |
| Wilburn House |
| Wildwood |
| Wildy, Edward Samuel, Barn |
| Wilhauf House |
| Willett House |
| Williams, Arthur, Homestead, Feed Storage Shed |
| Williams, Dr. Robert George, House |
| Williams, Hamp, Building |
| Williams House |
| Williams House and Associated Farmstead |
| Williamson Hall-Arkansas Tech University |
| Williamson House |
| Williams-Wootton House |
| Williford Methodist Church |
| Willmering Tourist Cabins Historic District |
| Wilson Commercial Historic District |
| Wilson Community House |
Data from United States Park Service and Wikidata
