Indiana - Significance region: Local
| Sylvania |
| Taggart, F.P., Store |
| Tate, George and Helen, House |
| Tate-Tatum Farm |
| Taylor Carpet Company Building |
| Taylor, Fernando G., House |
| Taylor-Zent House |
| Teague Barn Wabash Importing Company Farm Stable |
| Tell City Carnegie Library |
| Terminal Arcade |
| Terre Haute City Hall |
| Terre Haute Fire Station No. 8 |
| Terre Haute Masonic Temple |
| Terre Haute Post Office and Federal Building |
| Terre Haute YMCA Building |
| Test Building |
| Thawley, Joseph & Lucinda, House |
| The Buckingham |
| THI and E Interurban Depot-Substation |
| Thiebaud Farmstead |
| Third St. Joseph County Courthouse |
| Thomas, Amon Clarence, House |
| Thomas, Andrew, House |
| Thompson, Dr. George W., House |
| Thompson-Ray House |
| Thornhurst Addition |
| Thorntown Public Library |
| Tide Water Pumping Station |
| Tippecanoe Twp. District No. 3 Schoolhouse and Cemetery |
| Tipton County Courthouse |
| Tipton County Jail and Sheriff's Home |
| Tobey-Normington House |
| Tomlinson, George Washington, House |
| Toner Historic District |
| Tousley, Henry, House |
| Tower Building |
| Tower Hotel |
| Town Hall (Castle Hall) |
| Town of Crows Nest Historic District |
| TPA Park |
| Traders Point Eagle Creek Rural Historic District |
| Traders Point Hunt Rural Historic District |
| Trinity Episcopal Church & Parish House |
| Trippett-Glaze-Duncan-Kolb Farm |
| Tryon Farm |
| Turrell, Salmon, Farmstead |
| Twelve Points Historic District |
| Twin Bridges |
| Tyler, Moses H., Company Lime Kiln and Quarry No. 1 |
| Tyson United Methodist Church |
| Union Christian College |
| Union Church and Cemetery, Old |
| Union City Commercial Historic District |
| Union City Passenger Depot |
| Union City Public Library |
| Union City School |
| Union County Courthouse |
| Union High Academy Historic District |
| United States Corrugated-Fibre Box Company Plant |
| University Club |
| University Courts Historic District |
| University Park |
| Upper Main Street Historic District |
| U.S. Court House and Federal Office Building |
| US Post Office and Courthouse |
| US Post Office-Brazil |
| Valparaiso Downtown Commercial District |
| Valparaiso University Chapel of the Resurrection |
| Van Arsdel, William C., House |
| Van Cleave Flats |
| Vandalia Methodist Episcopal Church and Vandalia School |
| Van Nuys Farm |
| Van Reed Farmstead |
| Varsity, The |
| Veedersburg Clover Leaf Route Depot |
| Vehslage, George H., House |
| Vera and the Olga |
| Vermillion County Courthouse |
| Vermillion County Jail and Sheriff's Residence |
| Vermilyea Inn Historic District |
| Versailles Courthouse Square Historic District |
| Versailles School and Tyson Auditorium |
| Victory Court Historic District |
| Victory Noll-St. Felix Friary Historic District |
| Victory Theater and Hotel Sonntag |
| Vienna |
| Vigo County Courthouse |
| Vigo County Home for Dependent Children |
| Villa North Historic District |
| Vincennes Fortnightly Club |
| Violett-Martin House and Gardens |
| Violett, William N., House |
| Virginia Avenue District |
| Votaw, Jonas, House |
| Vurpillat's Opera House |
| Wabash Avenue-East Historic District |
| Wabash Avenue-West Historic District |
| Wabash Railroad Depot |
| Wabash Township Graded School |
| Wagoner-Ayres House |
Data from United States Park Service and Wikidata
