Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Units 1-4 Bottom Ash Pond | Reservoir | 193 | Washington | 39 35 00 N | 081 40 29 W |
| Units 1-4 Bottom Ash Pond Dam | Dam | 193 | Washington | 39 35 00 N | 081 40 29 W |
| Unity | Populated Place | 290 | Adams | 38 53 30 N | 083 31 24 W |
| Unity | Populated Place | 371 | Columbiana | 40 51 53 N | 080 33 34 W |
| Unity Baptist Cemetery | Cemetery | 291 | Monroe | 39 38 34 N | 081 03 02 W |
| Unity Baptist Church | Church | 238 | Hamilton | 39 08 05 N | 084 28 19 W |
| Unity Baptist Church | Church | 291 | Monroe | 39 38 35 N | 081 03 04 W |
| Unity Baptist Church | Church | 240 | Montgomery | 39 44 48 N | 084 14 19 W |
| Unity Brick Church Cemetery | Cemetery | 372 | Columbiana | 40 52 17 N | 080 34 23 W |
| Unity Cemetery | Cemetery | 292 | Adams | 38 53 31 N | 083 31 24 W |
| Unity Cemetery | Cemetery | 336 | Belmont | 40 09 08 N | 080 58 20 W |
| Unity Cemetery | Cemetery | 281 | Brown | 38 55 19 N | 083 56 48 W |
| Unity Cemetery | Cemetery | 324 | Perry | 39 47 32 N | 082 14 05 W |
| Unity Church | Church | 167 | Hamilton | 39 06 07 N | 084 30 28 W |
| Unity Church (historical) | Church | 324 | Perry | 39 47 32 N | 082 14 05 W |
| Unity Church of Christianity | Church | 271 | Franklin | 40 03 07 N | 082 59 19 W |
| Unity Church of God in Christ | Church | 305 | Summit | 41 06 41 N | 081 30 54 W |
| Unity Church of God in Christ | Church | 305 | Summit | 41 02 41 N | 081 33 49 W |
| Unity Creek | Stream | | Brown | 38 55 13 N | 083 55 44 W |
| Unity Elementary School | School | 372 | Columbiana | 40 51 52 N | 080 33 39 W |
| Unity First Church | Church | 189 | Lucas | 41 41 00 N | 083 37 28 W |
| Unity Grange | Locale | 349 | Tuscarawas | 40 33 54 N | 081 25 58 W |
| Unity Hall School (historical) | School | 263 | Guernsey | 39 59 10 N | 081 39 25 W |
| Unity Lutheran Church | Church | 243 | Cuyahoga | 41 25 55 N | 081 42 47 W |
| Unity of Lima Center | Church | 264 | Allen | 40 44 43 N | 084 07 45 W |
| Unity Post Office (historical) | Post Office | 369 | Columbiana | 40 51 55 N | 080 33 34 W |
| Unity Spiritual Church of the Seven Pillars of Truth | Church | 175 | Hamilton | 39 13 43 N | 084 27 49 W |
| Unity Temple | Church | 179 | Butler | 39 24 06 N | 084 34 07 W |
| Unity Temple | Church | 233 | Hamilton | 39 08 30 N | 084 30 02 W |
| Universal Church of Christ | Church | 168 | Hamilton | 39 06 42 N | 084 30 40 W |
| Universal Church of God | Church | 179 | Hamilton | 39 09 35 N | 084 23 35 W |
| Universal Church of Gods Love | Church | 256 | Hamilton | 39 07 35 N | 084 29 43 W |
| Universal Church of Truth (historical) | Church | 210 | Cuyahoga | 41 28 31 N | 081 43 36 W |
| Universal Hagars Spiritual Church | Church | 206 | Cuyahoga | 41 29 11 N | 081 38 58 W |
| Universal Hagars Spiritual Church | Church | 209 | Cuyahoga | 41 28 59 N | 081 37 55 W |
| Universal Hagars Spiritual Church | Church | 240 | Franklin | 39 56 57 N | 082 57 60 W |
| Universal Holiness Church | Church | 188 | Lucas | 41 39 02 N | 083 34 13 W |
| Universal Temple of Love | Church | 248 | Hamilton | 39 07 43 N | 084 28 38 W |
| Universal Temple of Truth | Church | 326 | Summit | 41 03 32 N | 081 29 10 W |
| Universal Temple of Unity | Church | 169 | Hamilton | 39 06 46 N | 084 30 46 W |
| Universalist Cemetery | Cemetery | 314 | Lorain | 41 04 17 N | 082 15 26 W |
| Universalist Church | Church | 350 | Licking | 40 04 44 N | 082 44 06 W |
| Universalist Church of Westfield Center | Church | 337 | Medina | 41 01 39 N | 081 56 02 W |
| University Baptist Church | Church | 234 | Franklin | 40 00 22 N | 083 00 37 W |
| University Bible Fellowship Church | Church | 245 | Franklin | 39 59 50 N | 082 59 50 W |
| University Center | Building | 292 | Greene | 39 46 50 N | 084 03 53 W |
| University Center | Building | 195 | Hamilton | 39 08 59 N | 084 28 29 W |
| University Christian Church | Church | | Hamilton | 39 07 40 N | 084 31 17 W |
| University Church of Christ | Church | 205 | Cuyahoga | 41 30 21 N | 081 37 27 W |
| University Circle | Locale | 209 | Cuyahoga | 41 30 25 N | 081 36 29 W |
| University Circle Regional Branch Library | Building | 207 | Cuyahoga | 41 30 17 N | 081 36 48 W |
| University Circle Research Center | Building | 210 | Cuyahoga | 41 30 02 N | 081 36 33 W |
| University City Shopping Center | Locale | 227 | Franklin | 40 01 11 N | 083 01 45 W |
| University Club | Building | 164 | Hamilton | 39 06 03 N | 084 30 21 W |
| University Commons | Park | 228 | Hamilton | 39 08 08 N | 084 30 27 W |
| University Euclid Church | Church | 203 | Cuyahoga | 41 30 21 N | 081 37 39 W |
| University Hall | Building | 269 | Delaware | 40 17 47 N | 083 04 01 W |
| University Hall | Building | 231 | Franklin | 40 00 02 N | 083 00 53 W |
| University Hall | Building | 226 | Hamilton | 39 08 11 N | 084 30 30 W |
| University Hall | Building | 185 | Lucas | 41 39 43 N | 083 36 52 W |
| University Hall | Building | 210 | Wood | 41 22 33 N | 083 38 23 W |
| University Heights | Populated Place | 313 | Cuyahoga | 41 29 52 N | 081 32 14 W |
| University Heights (subdivision) | Populated Place | 236 | Athens | 39 17 03 N | 082 08 20 W |
| University Heights Branch Cleveland Heights-University Heights Public Library | Building | 305 | Cuyahoga | 41 30 03 N | 081 32 37 W |
| University Heights City Hall | Building | 314 | Cuyahoga | 41 29 50 N | 081 32 12 W |
| University Hospital | Hospital | 223 | Franklin | 39 59 42 N | 083 01 05 W |
| University Hospitals | Hospital | 210 | Cuyahoga | 41 30 24 N | 081 36 20 W |
| University Hospitals Clinic | Hospital | 220 | Franklin | 39 59 39 N | 083 01 11 W |
| University Hospitals of Cleveland Heliport | Airport | 213 | Cuyahoga | 41 30 21 N | 081 36 17 W |
| University Lutheran Chapel | Church | 228 | Franklin | 39 59 52 N | 083 00 19 W |
| University Mall Shopping Center | Locale | 192 | Athens | 39 20 12 N | 082 04 60 W |
| University Medical College | School | 233 | Hamilton | 39 08 22 N | 084 30 22 W |
| University of Akron | School | 326 | Summit | 41 04 34 N | 081 30 41 W |
| University of Akron Memorial Stadium | Park | 316 | Summit | 41 04 12 N | 081 30 40 W |
| University of Cincinnati | School | 230 | Hamilton | 39 07 53 N | 084 30 59 W |
| University of Cincinnati Clermont County Branch | School | 245 | Clermont | 39 04 45 N | 084 11 60 W |
| University of Cincinnati Observatory | Locale | 243 | Hamilton | 39 08 19 N | 084 25 22 W |
| University of Dayton | School | 243 | Montgomery | 39 44 23 N | 084 10 42 W |
| University of Dayton Arena | Building | 224 | Montgomery | 39 44 07 N | 084 11 59 W |
| University of Dayton Cemetery | Cemetery | 249 | Montgomery | 39 44 18 N | 084 10 24 W |
| University of Findlay | School | 238 | Hancock | 41 03 13 N | 083 39 06 W |
| University of Toledo at SeaGate Campus | School | 181 | Lucas | 41 38 58 N | 083 32 11 W |
| University of Toledo Lake Erie Research Center | Building | 175 | Lucas | 41 41 19 N | 083 23 57 W |
| University Plaza Shopping Center | Locale | 261 | Hamilton | 39 07 42 N | 084 30 33 W |
| University Plaza Shopping Center | Locale | 325 | Portage | 41 08 23 N | 081 21 33 W |
| University Pond | Lake | 210 | Wood | 41 22 20 N | 083 38 29 W |
| University School | School | 330 | Cuyahoga | 41 28 55 N | 081 31 59 W |
| University Shoppes Shopping Center | Locale | 282 | Greene | 39 46 41 N | 084 03 16 W |
| Uno | Populated Place | 308 | Shelby | 40 20 40 N | 084 15 56 W |
| Uno Post Office (historical) | Post Office | 308 | Shelby | 40 20 40 N | 084 15 55 W |
| Unveiling and Unfolding of the Truth Ministries | Church | 250 | Franklin | 39 58 55 N | 082 58 50 W |
| Up Cemetery | Cemetery | 329 | Scioto | 38 56 59 N | 083 10 57 W |
| Up Run | Stream | | Scioto | 38 56 02 N | 083 11 36 W |
| Updike School (historical) | School | 381 | Knox | 40 20 20 N | 082 38 49 W |
| Updyke Addition (subdivision) | Populated Place | 185 | Wood | 41 34 05 N | 083 25 08 W |
| Updyke School (historical) | School | 329 | Richland | 40 58 09 N | 082 39 20 W |
| Upham Hall | Building | 279 | Butler | 39 30 32 N | 084 44 01 W |
| Upham Hall | Building | 220 | Franklin | 39 59 44 N | 083 01 10 W |
| Upland Heights | Populated Place | 329 | Jefferson | 40 09 32 N | 080 43 26 W |
| Upland Heights Cemetery | Cemetery | 317 | Jefferson | 40 09 39 N | 080 43 42 W |
| Upland Orchard | Locale | 290 | Ross | 39 15 32 N | 083 07 48 W |
| Upper Arlington | Populated Place | 216 | Butler | 39 30 58 N | 084 22 35 W |
| Upper Arlington | Populated Place | 247 | Franklin | 39 59 40 N | 083 03 45 W |
| Upper Arlington Church of Christ | Church | 263 | Franklin | 40 02 20 N | 083 04 37 W |
| Upper Arlington City Hall | Building | 253 | Franklin | 39 59 56 N | 083 03 44 W |
| Upper Arlington High School | School | 260 | Franklin | 40 00 54 N | 083 03 17 W |
| Upper Arlington Historic District | Park | 249 | Franklin | 39 59 52 N | 083 03 50 W |
| Upper Arlington Lutheran Church | Church | 261 | Franklin | 40 02 11 N | 083 04 43 W |
| Upper Arlington Public Library | Building | 250 | Franklin | 39 59 42 N | 083 03 40 W |
| Upper Bay Channel | Canal | 174 | Erie | 41 28 06 N | 082 43 07 W |