Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Thorson School (historical) | School | 274 | Trempealeau | 44 26 12 N | 091 10 60 W |
| Thousand Island State Conservancy Area | Park | 215 | Outagamie | 44 16 25 N | 088 15 17 W |
| Three Bucks Lakes | Lake | 377 | Douglas | 46 27 34 N | 091 56 38 W |
| Three Castles Airpark | Airport | 280 | Juneau | 43 40 12 N | 090 13 57 W |
| Three Chimneys | Pillar | 366 | Vernon | 43 36 39 N | 090 54 19 W |
| Three Johns Lake | Lake | 516 | Forest | 45 55 21 N | 088 58 50 W |
| Three Lake | Lake | 308 | Bayfield | 46 27 07 N | 091 18 01 W |
| Three Lakes | Lake | 410 | Rusk | 45 34 51 N | 091 25 34 W |
| Three Lakes | Lake | 285 | St. Croix | 45 02 01 N | 092 35 14 W |
| Three Lakes | Populated Place | 507 | Oneida | 45 47 54 N | 089 09 46 W |
| Three Lakes High School | School | 507 | Oneida | 45 47 43 N | 089 10 02 W |
| Three Lakes Municipal Airport | Airport | 498 | Oneida | 45 47 25 N | 089 07 15 W |
| Three Lakes Seaplane Base | Airport | 495 | Oneida | 45 47 60 N | 089 06 00 W |
| Three Little Lakes | Lake | 356 | Marinette | 45 23 22 N | 088 21 51 W |
| Three Little Lakes | Lake | 486 | Oneida | 45 50 09 N | 089 37 07 W |
| Three Springs Creek | Stream | | Door | 45 09 28 N | 087 04 08 W |
| Three Springs Farm | Locale | 308 | Richland | 43 32 32 N | 090 27 47 W |
| Three Stepping Stones Lakes | Lake | 490 | Vilas | 46 06 23 N | 089 52 39 W |
| Three Willows School (historical) | School | 355 | St. Croix | 45 01 18 N | 092 23 46 W |
| Threemile Creek | Stream | | Buffalo | 44 27 60 N | 091 37 33 W |
| Threemile Creek | Stream | | Kewaunee | 44 34 00 N | 087 27 26 W |
| Threemile Creek | Stream | | Oneida | 45 48 43 N | 089 45 53 W |
| Threemile Creek | Stream | | Price | 45 54 28 N | 090 22 14 W |
| Threemile Creek School (historical) | School | 256 | Buffalo | 44 27 57 N | 091 37 41 W |
| Thrift School (historical) | School | 223 | Door | 44 46 12 N | 087 25 06 W |
| Thrifty Oak School (historical) | School | 360 | St. Croix | 45 06 18 N | 092 17 19 W |
| Thunder Branch | Stream | | Lafayette | 42 38 45 N | 090 03 20 W |
| Thunder Creek | Stream | | Price | 45 34 39 N | 090 28 19 W |
| Thunder Creek | Stream | | Price | 45 43 07 N | 090 00 27 W |
| Thunder Lake | Lake | 262 | Marinette | 45 15 15 N | 088 14 29 W |
| Thunder Lake | Lake | 474 | Oneida | 45 39 52 N | 089 23 15 W |
| Thunder Lake | Lake | 497 | Oneida | 45 47 17 N | 089 13 01 W |
| Thunder Lake Inlet | Stream | | Marinette | 45 15 37 N | 088 14 41 W |
| Thunder Lake Outlet | Stream | | Marinette | 45 15 57 N | 088 13 47 W |
| Thunder Lake State Wildlife Area | Park | 497 | Oneida | 45 48 56 N | 089 12 03 W |
| Thunder Mountain | Summit | 427 | Marinette | 45 18 22 N | 088 18 00 W |
| Thunder Mountain Ranch | Locale | 291 | Marinette | 45 19 21 N | 088 17 07 W |
| Thunder River | Stream | | Marinette | 45 16 06 N | 088 11 07 W |
| Thunder River State Rearing Station | Locale | 280 | Marinette | 45 17 03 N | 088 16 19 W |
| Thurston Hill Cemetery | Cemetery | 363 | Pierce | 44 45 49 N | 092 30 44 W |
| Tibbet Creek | Stream | | Oconto | 44 42 58 N | 087 59 03 W |
| Tibbets | Populated Place | 286 | Walworth | 42 44 05 N | 088 34 53 W |
| Tibbets Elementary School | School | 281 | Walworth | 42 44 22 N | 088 33 28 W |
| Tice Cemetery | Cemetery | 248 | Winnebago | 43 59 21 N | 088 42 14 W |
| Tice Public Library | Building | 418 | Sawyer | 45 49 17 N | 091 00 45 W |
| Tice School | School | 254 | Winnebago | 43 58 57 N | 088 42 16 W |
| Tichigan | Populated Place | 242 | Racine | 42 49 44 N | 088 11 51 W |
| Tichigan and Buena Lakes 359 | Reservoir | 43 | Racine | 42 45 54 N | 088 12 48 W |
| Tichigan Lake | Reservoir | 236 | Racine | 42 46 00 N | 088 12 37 W |
| Tichigan State Wildlife Area | Park | 237 | Racine | 42 48 27 N | 088 14 49 W |
| Tichora Cemetery | Cemetery | 316 | Green Lake | 43 43 15 N | 088 57 19 W |
| Tidyman Cemetery | Cemetery | 290 | Dodge | 43 32 43 N | 088 34 52 W |
| Tiedemans Pond | Lake | 278 | Dane | 43 05 25 N | 089 30 17 W |
| Tiedtke Valley | Valley | | Juneau | 43 42 23 N | 090 15 53 W |
| Tiffany | Populated Place | 259 | Rock | 42 34 57 N | 088 55 37 W |
| Tiffany Bottoms State Natural Area | Park | 45 | Buffalo | 44 31 20 N | 092 02 05 W |
| Tiffany Cemetery | Cemetery | 307 | Dunn | 45 02 30 N | 092 03 40 W |
| Tiffany Creek | Stream | | Buffalo | 44 35 37 N | 091 49 59 W |
| Tiffany Creek | Stream | | Dunn | 45 03 29 N | 092 00 40 W |
| Tiffany Lake | Reservoir | 439 | Taylor | 45 11 42 N | 090 25 37 W |
| Tiffany School | School | 259 | Buffalo | 44 34 05 N | 091 45 56 W |
| Tiffany School (historical) | School | 263 | Buffalo | 44 33 12 N | 091 50 22 W |
| Tiffany State Public Hunting Grounds | Park | 207 | Buffalo | 44 29 05 N | 092 02 21 W |
| Tiffany Townhall | Building | 293 | Dunn | 45 05 49 N | 092 04 21 W |
| Tiffany Valley | Valley | | Buffalo | 44 32 57 N | 091 50 45 W |
| Tiger Cat 2WP255 Dam | Dam | 409 | Sawyer | 46 01 48 N | 091 14 31 W |
| Tiger Cat Dam | Dam | 412 | Sawyer | 46 01 47 N | 091 14 35 W |
| Tiger Cat Flowage | Reservoir | 412 | Sawyer | 46 01 47 N | 091 14 35 W |
| Tiger Cat Flowage 47 | Reservoir | 409 | Sawyer | 46 01 48 N | 091 14 31 W |
| Tiger Creek | Stream | | Shawano | 44 44 32 N | 089 03 38 W |
| Tigertail Point | Cape | 485 | Oneida | 45 47 47 N | 089 42 44 W |
| Tigerton | Populated Place | 314 | Shawano | 44 44 27 N | 089 03 47 W |
| Tigerton Dells | Rapids | 295 | Shawano | 44 44 16 N | 089 01 42 W |
| Tilden | Populated Place | 291 | Chippewa | 45 00 24 N | 091 26 16 W |
| Tilden 2WP150 Dam | Dam | 281 | Chippewa | 44 59 13 N | 091 25 06 W |
| Tilden Cemetery | Cemetery | 290 | Chippewa | 45 01 04 N | 091 27 46 W |
| Tilden Millpond | Reservoir | 281 | Chippewa | 44 59 13 N | 091 25 06 W |
| Tilden Millpond 110 | Reservoir | 280 | Chippewa | 44 59 12 N | 091 25 07 W |
| Tilleda | Populated Place | 294 | Shawano | 44 48 56 N | 088 54 40 W |
| Tilleda 1885C281 Dam | Dam | 292 | Shawano | 44 48 54 N | 088 54 48 W |
| Tilleda Pond 53 | Reservoir | 291 | Shawano | 44 48 54 N | 088 54 48 W |
| Tilleman Bridge | Bridge | 177 | Brown | 44 30 32 N | 088 01 17 W |
| Tiller Creek | Stream | | Barron | 45 15 08 N | 091 43 09 W |
| Tiller School (historical) | School | 224 | Richland | 43 18 22 N | 090 38 44 W |
| Tillinghast Cemetery | Cemetery | 333 | Chippewa | 45 12 41 N | 091 27 38 W |
| Tillinghast School (historical) | School | 328 | Chippewa | 45 12 49 N | 091 27 13 W |
| Tilly Lake | Lake | 273 | Washington | 43 19 43 N | 088 11 25 W |
| Tim Lynn Lake | Lake | 491 | Oneida | 45 45 41 N | 089 25 30 W |
| Timan Lake | Lake | 259 | Waushara | 44 10 04 N | 089 07 39 W |
| Timber Coulee | Valley | | Vernon | 43 43 11 N | 090 58 22 W |
| Timber Coulee Creek | Stream | | La Crosse | 43 43 10 N | 090 58 35 W |
| Timber Creek | Stream | | Jackson | 44 26 57 N | 091 08 38 W |
| Timber Creek School (historical) | School | 294 | Jackson | 44 29 02 N | 091 09 35 W |
| Timber Lake | Lake | 474 | Oneida | 45 36 54 N | 089 26 19 W |
| Timber Lake | Lake | 479 | Oneida | 45 41 21 N | 089 35 40 W |
| Timber Terrace Golf Course | Locale | 266 | Chippewa | 44 56 29 N | 091 22 19 W |
| Timberland | Populated Place | 404 | Burnett | 45 40 34 N | 092 06 22 W |
| Timberland Church | Church | 408 | Burnett | 45 40 10 N | 092 06 24 W |
| Timberline Airport | Airport | 288 | Waupaca | 44 25 60 N | 089 09 00 W |
| Times Square Shopping Center | Locale | 223 | Milwaukee | 43 05 26 N | 088 00 28 W |
| Timilin School (historical) | School | 402 | Marathon | 44 45 27 N | 090 10 49 W |
| Timms Hill | Summit | 589 | Price | 45 27 04 N | 090 11 43 W |
| Timms Lake | Lake | 258 | Marinette | 45 40 12 N | 087 53 48 W |
| Timms Lake | Lake | 553 | Price | 45 27 16 N | 090 11 34 W |
| Timothy Johnson Park | Park | 259 | Dodge | 43 12 01 N | 088 44 57 W |
| Tindahl School (historical) | School | 349 | Jackson | 44 32 10 N | 091 01 09 W |
| Tinkers Bluff | Cliff | 336 | Vernon | 43 39 45 N | 090 20 50 W |
| Tinnes Cemetery | Cemetery | 335 | Trempealeau | 44 17 37 N | 091 20 50 W |
| Tinsel Lake | Lake | 497 | Vilas | 45 54 57 N | 089 07 56 W |
| Tioga | Populated Place | 330 | Clark | 44 41 03 N | 090 47 36 W |