Indiana - Criteria: A (event)
| Wildwood Park Historic District |
| Wil-Fra-Mar |
| Wilkins Mill Bridge |
| William Street School |
| Williams-Woodland Park Historic District |
| Wilson |
| Wilson Junior High School |
| Wilson, Woodrow, Junior High School |
| Wiltrout, Maria and Franklin, Polygonal Barn |
| Winchester Courthouse Square Historic District |
| Winona Lake Historic District |
| Witt-Champe-Myers House |
| Wolf, Mathias, Farm |
| Wood, John, Farmstead |
| Wood, John, Old Mill |
| Woolery Stone Company |
| Work, John, House and Mill Site |
| Wyndham |
| Wynkoop-Taylor-Swanson-Sharp Farmstead |
| Wysor Heights Historic District |
| Yoder, Menno, Polygonal Barn |
| York, W. H., Round Barn |
| 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 |
| Zacke Cox Bridge |
Data from United States Park Service and Wikidata
