Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Walden Dam | Dam | 308 | Portage | 41 18 24 N | 081 22 29 W |
| Walden Elementary School | School | 274 | Franklin | 40 04 53 N | 082 58 05 W |
| Walden Lake | Reservoir | 308 | Portage | 41 18 24 N | 081 22 29 W |
| Walden Park | Park | 274 | Franklin | 40 04 53 N | 082 57 60 W |
| Walden Run | Stream | | Monroe | 39 47 41 N | 080 49 55 W |
| Walden Waterfowl Refuge | Park | 291 | Franklin | 40 04 30 N | 082 52 06 W |
| Waldern Hill Cemetery | Cemetery | 288 | Pike | 39 05 29 N | 083 07 11 W |
| Waldo | Populated Place | 287 | Marion | 40 27 32 N | 083 04 38 W |
| Waldo Cemetery | Cemetery | 291 | Marion | 40 27 27 N | 083 04 49 W |
| Waldo Elementary School | School | 291 | Marion | 40 27 47 N | 083 04 40 W |
| Waldo Post Office | Post Office | 286 | Marion | 40 27 30 N | 083 04 40 W |
| Waldruhe Park | Park | 305 | Montgomery | 39 36 12 N | 084 13 29 W |
| Wales Corner Cemetery | Cemetery | 224 | Sandusky | 41 18 58 N | 082 54 07 W |
| Wales Corners | Populated Place | 223 | Sandusky | 41 18 56 N | 082 54 10 W |
| Wales Park | Park | 307 | Stark | 40 48 42 N | 081 29 51 W |
| Wales Road Industrial Community | Locale | 187 | Wood | 41 36 15 N | 083 31 32 W |
| Wales Square Shopping Center | Locale | 334 | Stark | 40 49 23 N | 081 30 06 W |
| Walford School | School | 270 | Franklin | 40 02 33 N | 082 57 54 W |
| Walhonding | Populated Place | 269 | Coshocton | 40 21 34 N | 082 08 49 W |
| Walhonding | Populated Place | 250 | Guernsey | 39 54 16 N | 081 29 50 W |
| Walhonding Canal | Canal | 236 | Coshocton | 40 19 19 N | 081 56 49 W |
| Walhonding Cemetery | Cemetery | 259 | Coshocton | 40 21 48 N | 082 08 30 W |
| Walhonding Post Office | Post Office | 269 | Coshocton | 40 21 35 N | 082 08 50 W |
| Walhonding River | Stream | | Coshocton | 40 16 31 N | 081 52 25 W |
| Walker Cemetery | Cemetery | 348 | Stark | 40 46 04 N | 081 05 24 W |
| Walker Chapel Cemetery | Cemetery | 301 | Butler | 39 27 28 N | 084 48 25 W |
| Walker Church | Church | 304 | Butler | 39 27 28 N | 084 48 31 W |
| Walker Ditch | Canal | 190 | Lorain | 41 26 55 N | 082 04 22 W |
| Walker Hall | Building | 205 | Hamilton | 39 08 49 N | 084 28 35 W |
| Walker Hill | Summit | 324 | Adams | 38 54 29 N | 083 16 43 W |
| Walker Hollow | Valley | | Scioto | 38 43 53 N | 083 06 52 W |
| Walker Junior High School | School | 336 | Stark | 40 45 24 N | 081 19 57 W |
| Walker Lake | Lake | 389 | Richland | 40 47 40 N | 082 37 05 W |
| Walker Landing | Locale | 149 | Scioto | 38 40 00 N | 083 06 60 W |
| Walker Number 1 Cemetery | Cemetery | 317 | Highland | 39 03 26 N | 083 35 52 W |
| Walker Number 2 Cemetery | Cemetery | 317 | Highland | 39 03 41 N | 083 36 27 W |
| Walker Run | Stream | | Adams | 38 47 41 N | 083 18 57 W |
| Walker Run | Stream | | Meigs | 39 05 55 N | 081 56 10 W |
| Walker School (historical) | School | 275 | Muskingum | 39 59 58 N | 082 00 22 W |
| Walker School (historical) | School | 233 | Pickaway | 39 44 41 N | 083 02 43 W |
| Walkers | Populated Place | 209 | Columbiana | 40 37 20 N | 080 37 00 W |
| Walkers Landing | Locale | 165 | Gallia | 38 47 28 N | 082 13 14 W |
| Walkers Post Office (historical) | Post Office | 208 | Columbiana | 40 37 20 N | 080 36 59 W |
| Walkup Cemetery | Cemetery | 291 | Shelby | 40 20 40 N | 084 24 56 W |
| Walkup Country Club | Locale | 291 | Shelby | 40 20 37 N | 084 24 55 W |
| Walkup School (historical) | School | 291 | Shelby | 40 20 37 N | 084 24 55 W |
| Walkup School (historical) | School | 271 | Williams | 41 41 15 N | 084 27 26 W |
| Wall Creek | Stream | | Lawrence | 38 32 37 N | 082 23 32 W |
| Wall Street School (historical) | School | 249 | Washington | 39 32 01 N | 081 35 22 W |
| Wallaby Residence Hall | Building | 323 | Summit | 41 04 23 N | 081 30 33 W |
| Wallace Cemetery | Cemetery | 276 | Adams | 38 57 55 N | 083 39 10 W |
| Wallace Fork | Stream | | Auglaize | 40 34 45 N | 083 52 48 W |
| Wallace Fork School (historical) | School | 316 | Auglaize | 40 36 03 N | 083 55 26 W |
| Wallace H Braden Junior High School | School | 208 | Ashtabula | 41 52 26 N | 080 46 15 W |
| Wallace Heights | Populated Place | 354 | Jefferson | 40 27 29 N | 080 37 47 W |
| Wallace Lake | Lake | 233 | Cuyahoga | 41 21 39 N | 081 51 37 W |
| Wallace Lake Picnic Area | Locale | 234 | Cuyahoga | 41 21 41 N | 081 51 31 W |
| Wallace Mills | Populated Place | 171 | Scioto | 38 51 30 N | 082 47 50 W |
| Wallace Mills Post Office (historical) | Post Office | 187 | Scioto | 38 51 35 N | 082 47 50 W |
| Wallace Private Cemetery | Cemetery | 392 | Jefferson | 40 26 21 N | 080 49 01 W |
| Wallaroo Residence Hall | Building | 323 | Summit | 41 04 23 N | 081 30 29 W |
| Wallehorst School (historical) | School | 230 | Putnam | 40 52 27 N | 084 18 05 W |
| Wallet Cemetery | Cemetery | 264 | Allen | 40 44 59 N | 084 03 06 W |
| Walleye Lake | Lake | 225 | Vinton | 39 09 37 N | 082 31 55 W |
| Wallick Cemetery | Cemetery | 246 | Van Wert | 40 47 13 N | 084 34 18 W |
| Walling Corners | Populated Place | 366 | Cuyahoga | 41 20 44 N | 081 41 04 W |
| Wallings Plaza Shopping Center | Locale | 380 | Cuyahoga | 41 19 51 N | 081 43 23 W |
| Wallings School | School | 351 | Cuyahoga | 41 20 44 N | 081 40 30 W |
| Wallopsburg | Populated Place | 341 | Clinton | 39 21 15 N | 083 45 34 W |
| Walls Cemetery | Cemetery | 290 | Marion | 40 28 35 N | 083 08 29 W |
| Walls Elementary School | School | 335 | Portage | 41 09 29 N | 081 20 42 W |
| Walnut | Populated Place | 247 | Pickaway | 39 42 34 N | 082 51 07 W |
| Walnut Beach Park | Park | 174 | Ashtabula | 41 54 03 N | 080 48 28 W |
| Walnut Church | Church | 208 | Gallia | 38 42 31 N | 082 23 20 W |
| Walnut Creek | Populated Place | 361 | Holmes | 40 32 29 N | 081 43 18 W |
| Walnut Creek | Stream | | Brown | 38 54 02 N | 083 55 27 W |
| Walnut Creek | Stream | | Highland | 39 19 41 N | 083 27 48 W |
| Walnut Creek | Stream | | Huron | 41 04 17 N | 082 39 20 W |
| Walnut Creek | Stream | | Pickaway | 39 40 50 N | 082 59 10 W |
| Walnut Creek | Stream | | Ross | 39 13 18 N | 082 52 28 W |
| Walnut Creek | Stream | | Summit | 41 08 56 N | 081 27 09 W |
| Walnut Creek | Stream | | Trumbull | 41 19 17 N | 080 44 30 W |
| Walnut Creek | Stream | | Tuscarawas | 40 35 28 N | 081 36 50 W |
| Walnut Creek Cemetery | Cemetery | 283 | Fayette | 39 22 57 N | 083 27 20 W |
| Walnut Creek Cemetery | Cemetery | 349 | Holmes | 40 32 30 N | 081 43 31 W |
| Walnut Creek Elementary School | School | 364 | Holmes | 40 32 23 N | 081 43 15 W |
| Walnut Creek Mennonite Cemetery | Cemetery | 319 | Holmes | 40 31 41 N | 081 42 52 W |
| Walnut Creek Mennonite Church | Church | 301 | Holmes | 40 31 49 N | 081 42 57 W |
| Walnut Creek Post Office | Post Office | 361 | Holmes | 40 32 30 N | 081 43 19 W |
| Walnut Elementary School | School | 237 | Pickaway | 39 41 24 N | 082 53 32 W |
| Walnut Farm (historical) | Locale | 288 | Knox | 40 33 00 N | 082 12 09 W |
| Walnut Grove | Populated Place | 280 | Hardin | 40 43 05 N | 083 37 26 W |
| Walnut Grove | Populated Place | 353 | Logan | 40 25 38 N | 083 37 24 W |
| Walnut Grove Campground | Locale | 248 | Seneca | 41 01 04 N | 083 12 05 W |
| Walnut Grove Cemetery | Cemetery | 237 | Allen | 40 49 48 N | 084 17 26 W |
| Walnut Grove Cemetery | Cemetery | 205 | Belmont | 40 06 00 N | 080 43 04 W |
| Walnut Grove Cemetery | Cemetery | 241 | Franklin | 40 04 31 N | 083 01 32 W |
| Walnut Grove Cemetery | Cemetery | 251 | Van Wert | 40 45 12 N | 084 35 09 W |
| Walnut Grove Cemetery | Cemetery | 248 | Vinton | 39 19 16 N | 082 36 57 W |
| Walnut Grove Cemetery | Cemetery | 262 | Williams | 41 40 33 N | 084 26 12 W |
| Walnut Grove Church | Church | 255 | Auglaize | 40 36 29 N | 084 22 27 W |
| Walnut Grove Church | Church | 239 | Van Wert | 40 58 30 N | 084 46 47 W |
| Walnut Grove Church | Church | 234 | Vinton | 39 19 14 N | 082 36 57 W |
| Walnut Grove Church (historical) | Church | 249 | Van Wert | 40 45 26 N | 084 34 51 W |
| Walnut Grove Country Club | Locale | 283 | Montgomery | 39 44 17 N | 084 06 10 W |
| Walnut Grove Farm (historical) | Locale | 247 | Licking | 40 05 18 N | 082 16 49 W |
| Walnut Grove Grange (historical) | Building | 236 | Paulding | 40 59 27 N | 084 47 12 W |
| Walnut Grove School | School | 350 | Stark | 40 57 38 N | 081 21 42 W |
| Walnut Grove School (historical) | School | 255 | Auglaize | 40 36 30 N | 084 22 25 W |
| Walnut Grove School (historical) | School | 283 | Auglaize | 40 29 47 N | 084 14 11 W |