Indiana - Area of significance: Architecture
| Warner House-Warner Schoolhouse |
| Warren County Courthouse |
| Warren Downtown Historic District |
| Warsaw Courthouse Square Historic District |
| Washington Avenue Historic District |
| Washington Commercial Historic District |
| Washington County Jail and Sheriff's Residence |
| Washington Park |
| Washington Park Historic District |
| Washington Street-Monument Circle Historic District |
| Wasson, H.P. & Company Building |
| Waterloo Community Mausoleum |
| Watson House |
| Watson Park Historic District |
| Wayne County Courthouse |
| Welborn Historic District |
| Welborn-Ross House |
| Weller House |
| Wells County Courthouse |
| Wenger, Martin, Farmhouse |
| Wertz-Bestle Farm |
| Wesley Foundation Student Center |
| West Baden National Bank |
| West Baden Springs Hotel |
| West Beach Historic District |
| West Central Historic District |
| Westcott Stock Farm |
| West Eighth Street Historic District |
| West End Historic District |
| Westfield Historic District |
| West Fifth Avenue Apartments Historic District |
| West, Fisher, Farm |
| West LaSalle Avenue Historic District |
| Westleigh Farms |
| Westside Historic District |
| West Side Historic District |
| West Wabash Historic District |
| West Ward School |
| West Washington Historic District |
| West Washington Street Pumping Station |
| Westwood Historic District |
| Wheeler, Frank, Hotel |
| Wheeler-Schebler Carburetor Company |
| Wheeler-Stokely Mansion |
| Whitelock, Henry F., House and Farm |
| Whitley County Courthouse |
| Whittier, John Greenleaf, School, No. 33 |
| Wicks Building |
| Wilderson, John, House |
| Wildwood Park Historic District |
| Wil-Fra-Mar |
| Willard Library |
| Williams, Samuel P., House |
| William Street School |
| Williams-Warren-Zimmerman House |
| Williams-Woodland Park Historic District |
| Willkie, Wendell Lewis, House |
| Wilson |
| Wilson-Courtney House |
| Wilson, Dr Nelson, House |
| Wilson Junior High School |
| Wilson, J. Woodrow, House |
| Wilson, Robert L., House |
| Wilson, Solomon, Building |
| Wilson, Woodrow, Junior High School |
| Wiltrout, Maria and Franklin, Polygonal Barn |
| Winchester Courthouse Square Historic District |
| Winchester Residential Historic District |
| Winona Lake Historic District |
| Witt-Champe-Myers House |
| Wolcott, George and Margaret, House |
| Wolf, George John, House |
| Wolf, Josephus, House |
| Wolf, Mathias, Farm |
| Wollenmann, Dr. Alois, House |
| Woodbine |
| Wood, John, Farmstead |
| Wood, John, Old Mill |
| Woodruff Place |
| Woodside |
| Work, John, House and Mill Site |
| Wright, Thomas T., House |
| Wylie, Andrew, House |
| Wyndham |
| Wynkoop-Taylor-Swanson-Sharp Farmstead |
| Wysor Heights Historic District |
| YMCA |
| Yoder, Menno, Polygonal Barn |
| York, W. H., Round Barn |
| Young, John, House |
| Young, Martin, House |
| Young, William, House |
| Young Women's Christian Association |
| Young-Yentes-Mattern Farm |
| Yount's Woolen Mill and Boarding House |
| YWCA |
| YWCA |
| YWCA Blue Triangle Residence Hall |
| Zahn Historic District |
| Zeppenfeld, August, House |
Data from United States Park Service and Wikidata
