Pennsylvania - Area of significance: Architecture
| West Philadelphia High School |
| West Philadelphia Streetcar Suburb Historic District |
| West Sixth Street Historic District |
| West Vincent Highlands Historic District |
| West Whiteland Inn |
| Wetherby-Hampton-Snyder-Wilson-Erdman Log House |
| Wetmore House |
| Wharton Street Memorial Methodist Episcopal Church and Sunday School |
| Wheelen House |
| Whipple Dam State Park Day Use District |
| White Chimneys |
| Whitefield House and Gray Cottage |
| Whiteford, Hugh and Elizabeth Ross, House |
| Whitehall Apartments |
| White Hall of Bristol College |
| White, Hannah, Log House |
| Whitehill-Gleason Motors |
| White Horse Farm |
| White Horse Historic District |
| White Horse Tavern |
| White Horse Tavern |
| White House Inn |
| White, John, House |
| Whitford Garne |
| Whitford Hall |
| Whitford Station House |
| Whitpain Public School |
| Whitsett Historic District |
| Whittier, John Greenleaf, School |
| Wickersham, Gideon, Farmstead |
| Widow Maloby's Tavern |
| Widow Piper's Tavern |
| Wightman School |
| Wiley-Cloud House |
| Wilhelm Mansion and Carriage House |
| Wilkinsburg Historic District |
| Wilkinson House |
| Willard, Francis E., School |
| William and Elisabeth Edwards House |
| William Penn Hotel |
| Williamsburg Historic District |
| Williams, Ellis, House |
| Williams, John, Farm |
| Williams, John, House |
| Williamson Free School of Mechanical Trades |
| Williamsport Armory |
| Williamsport City Hall |
| Williams, Roger, Public School No. 10 |
| Willow Mill Complex |
| Willow Steam Plant |
| Wills Hospital |
| Willson, Thomas A. and Co. |
| Wilmot Mansion |
| Wilpen Hall |
| Wilson College |
| Wilson, George, Homestead |
| Wilson, James, Public School |
| Wilson, Levi, Tavern |
| Wilson, Robert, House |
| Wilson, Woodrow, Junior High School |
| Windber Historic District |
| Windom Mill Farm |
| Windsor Forge Mansion |
| Winings, Jacob, House and Clover Mill |
| Wirts House |
| Wisner, Jacob, House |
| Wissahickon |
| Wissahickon Inn |
| Wister, Mary Channing, School |
| Witherspoon Building |
| Wolf, George, School |
| Wolf, Penrose, Building |
| Wolley Stille |
| Wollner Building |
| Woman's Club of Warren |
| Woman's Medical College of Pennsylvania |
| Womelsdorf Historic District |
| Woodcrest |
| Woodford |
| Woodland |
| Woodland Station |
| Woodlands, The |
| Woodland Terrace |
| Woodledge |
| Woodmont |
| Woods, John, House |
| Woodvale Historic District |
| Woodward Inn |
| Woolslair Elementary School |
| Work, Col. John, House |
| Worlds End State Park Family Cabin District |
| Wormley, John, House |
| Worth-Jefferis Rural Historic District |
| Wright, Enoch, House |
| Wright, Richardson L., School |
| Wright's Ferry Mansion |
| Wrightstown Friends Meeting Complex |
| Wrightstown Octagonal Schoolhouse |
| Wrightsville Historic District |
| Wyalusing Borough Historic District |
Data from United States Park Service and Wikidata
