Pennsylvania - Significance region: Local
| Wharton Street Memorial Methodist Episcopal Church and Sunday School |
| Wheelen House |
| White Chimneys |
| Whiteford, Hugh and Elizabeth Ross, House |
| Whitehall Apartments |
| 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 Piper's Tavern |
| Wightman School |
| Wilde, John and Brother, Inc. |
| Wilhelm Mansion and Carriage House |
| Wilkes-Barre Silk Company Mill |
| Wilkinsburg Historic District |
| Wilkinson House |
| Willard, Francis E., School |
| William and Elisabeth Edwards House |
| William Brown Company Hosiery Mill |
| Williamsburg Historic District |
| Williams, Ellis, House |
| Williams, John, Farm |
| Williams, John, House |
| Williamsport City Hall |
| Williams, Roger, Public School No. 10 |
| Willis House |
| Willow Mill Complex |
| Willow Steam Plant |
| Willson, Thomas A. and Co. |
| Wilmot, David, School |
| Wilpen Hall |
| 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 |
| Windsor Manufacturing Company |
| Winings, Jacob, House and Clover Mill |
| Wirts House |
| Wisner, Jacob, House |
| Wissahickon |
| Wister, Mary Channing, School |
| Witmer's Tavern |
| 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 |
| Woodland |
| Woodland Station |
| Woods, John, House |
| Woodvale Historic District |
| Woodward Hill Cemetery |
| Woodward Inn |
| Woolslair Elementary School |
| Work, Col. John, House |
| Worker's House at Lower Laurel Iron Works |
| Worth-Jefferis Rural Historic District |
| Wright, Enoch, House |
| Wright, Richardson L., School |
| Wright’s Block |
| Wright's Ferry Mansion |
| Wrightstown Friends Meeting Complex |
| Wrightstown Octagonal Schoolhouse |
| Wyalusing Borough Historic District |
| Wycombe Village Historic District |
| Wyit Sprowls Covered Bridge |
| Wyncote Historic District |
| Wynnestay |
| Wyoming Central Office of the Bell Telephone Company |
| Wyoming Seminary |
| Yardley Historic District |
| Y Covered Bridge No. 156 |
| Yeakle and Miller Houses |
| Yeates, Jasper, House |
| YMCA of Germantown |
| Yoder Mill |
| York Casket Company |
| York Dispatch Newspaper Offices |
| York Iron Company Mine |
| York Meetinghouse |
| Yorktown Historic District |
| Youghiogheny Bank of Pennslyvania |
Data from United States Park Service and Wikidata
