Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Monticello | Populated Place | 257 | Van Wert | 40 41 51 N | 084 25 32 W |
| Monticello (historical) | Populated Place | 288 | Fairfield | 39 54 00 N | 082 33 45 W |
| Monticello Junior High School | School | 268 | Cuyahoga | 41 31 50 N | 081 32 56 W |
| Monticello Post Office (historical) | Post Office | 288 | Fairfield | 39 54 00 N | 082 33 45 W |
| Monticellow Post Office (historical) | Post Office | | Van Wert | 40 41 50 N | 084 25 30 W |
| Montmere Lake | Reservoir | 329 | Geauga | 41 38 12 N | 081 00 17 W |
| Montmere Lake Dam | Dam | 329 | Geauga | 41 38 12 N | 081 00 17 W |
| Montoneys Airport | Airport | 256 | Franklin | 39 54 44 N | 083 05 27 W |
| Montpelier | Populated Place | 261 | Williams | 41 35 04 N | 084 36 20 W |
| Montpelier Church of Christ | Church | 263 | Williams | 41 35 03 N | 084 36 27 W |
| Montpelier Elementary School | School | 262 | Williams | 41 35 03 N | 084 36 24 W |
| Montpelier High School | School | 262 | Williams | 41 35 13 N | 084 36 16 W |
| Montpelier Post Office | Post Office | 261 | Williams | 41 35 07 N | 084 36 37 W |
| Montra | Populated Place | 319 | Shelby | 40 25 55 N | 084 05 42 W |
| Montra Post Office (historical) | Post Office | 320 | Shelby | 40 25 55 N | 084 05 40 W |
| Montreal (historical) | Populated Place | 196 | Lawrence | 38 26 14 N | 082 32 30 W |
| Montreal Post Office (historical) | Post Office | 201 | Lawrence | 38 26 15 N | 082 32 30 W |
| Montrose | Populated Place | 311 | Summit | 41 08 08 N | 081 38 14 W |
| Montrose Cemetery | Cemetery | 311 | Summit | 41 08 00 N | 081 38 14 W |
| Montrose Centre Shopping Center | Locale | 307 | Summit | 41 08 07 N | 081 38 19 W |
| Montrose Elementary School | School | 241 | Franklin | 39 57 22 N | 082 55 51 W |
| Montrose Zion United Methodist Church | Church | 308 | Summit | 41 09 04 N | 081 38 10 W |
| Montville | Populated Place | 367 | Geauga | 41 36 26 N | 081 03 01 W |
| Montville Center Cemetery | Cemetery | 376 | Geauga | 41 36 42 N | 081 03 01 W |
| Montville Ditch | Canal | 338 | Lake | 41 36 05 N | 081 01 12 W |
| Montville Lakes | Lake | 298 | Medina | 41 06 29 N | 081 47 57 W |
| Montville Lakes 1016-001 | Reservoir | 295 | Medina | 41 06 24 N | 081 47 59 W |
| Montville Lakes 1016-008 | Reservoir | 295 | Medina | 41 06 24 N | 081 47 53 W |
| Montville Lakes Dam 1016-001 | Dam | 295 | Medina | 41 06 24 N | 081 47 59 W |
| Montville Lakes Dam 1016-008 | Dam | 295 | Medina | 41 06 24 N | 081 47 53 W |
| Montville Post Office | Post Office | 368 | Geauga | 41 36 25 N | 081 02 59 W |
| Monument Park | Park | 287 | Mercer | 40 24 47 N | 084 46 33 W |
| Monument Park | Park | 264 | Perry | 39 43 10 N | 082 12 40 W |
| Monument Pond (historical) | Lake | 175 | Ottawa | 41 39 13 N | 082 48 44 W |
| Monument Square | Park | 320 | Champaign | 40 06 30 N | 083 45 10 W |
| Moody | School | 253 | Morgan | 39 31 43 N | 081 58 05 W |
| Moody (historical) | Populated Place | 210 | Gallia | 38 42 22 N | 082 18 14 W |
| Moody Junior High School | School | 296 | Cuyahoga | 41 23 38 N | 081 32 02 W |
| Moody Post Office (historical) | Post Office | 213 | Gallia | 38 42 20 N | 082 18 15 W |
| Moody School (historical) | School | 257 | Wyandot | 40 49 56 N | 083 19 23 W |
| Moon Cemetery | Cemetery | 302 | Scioto | 38 47 40 N | 083 11 57 W |
| Moon Hollow | Valley | | Adams | 38 44 11 N | 083 21 14 W |
| Moon Hollow Run | Stream | | Brown | 38 46 44 N | 084 01 12 W |
| Moon Ridge | Ridge | 341 | Adams | 38 53 54 N | 083 15 58 W |
| Moon Run | Stream | | Adams | 38 44 15 N | 083 21 15 W |
| Mooney Cemetery | Cemetery | 282 | Delaware | 40 26 22 N | 083 13 15 W |
| Mooney Junior High School | School | 230 | Cuyahoga | 41 26 06 N | 081 42 19 W |
| Mooney Meadows Subdivision | Populated Place | 227 | Paulding | 41 04 03 N | 084 43 43 W |
| Mooneys Run | Stream | | Warren | 39 27 05 N | 084 14 16 W |
| Moonville | Tunnel | 239 | Vinton | 39 18 24 N | 082 19 17 W |
| Moore (historical) | Populated Place | 160 | Adams | 38 47 55 N | 083 25 42 W |
| Moore Branch | Stream | | Clinton | 39 26 54 N | 083 57 15 W |
| Moore Cemetery | Cemetery | 346 | Carroll | 40 42 23 N | 081 03 13 W |
| Moore Cemetery | Cemetery | 243 | Gallia | 38 56 23 N | 082 10 37 W |
| Moore Cemetery | Cemetery | 286 | Highland | 39 10 07 N | 083 29 16 W |
| Moore Cemetery | Cemetery | 305 | Logan | 40 19 08 N | 083 51 56 W |
| Moore Cemetery | Cemetery | 207 | Ross | 39 19 55 N | 083 05 48 W |
| Moore Corners | Locale | 405 | Morrow | 40 23 58 N | 082 43 55 W |
| Moore Ford | Crossing | 255 | Preble | 39 43 19 N | 084 31 12 W |
| Moore Hollow | Valley | | Hocking | 39 27 38 N | 082 33 09 W |
| Moore Junction | Populated Place | 191 | Washington | 39 22 45 N | 081 29 54 W |
| Moore Lake | Reservoir | 233 | Coshocton | 40 09 42 N | 082 01 29 W |
| Moore Lake Dam | Dam | 233 | Coshocton | 40 09 42 N | 082 01 29 W |
| Moore Musical Arts Center | Building | 207 | Wood | 41 22 43 N | 083 38 03 W |
| Moore Park | Park | 236 | Williams | 41 28 12 N | 084 34 06 W |
| Moore Point | Cape | 174 | Ottawa | 41 34 36 N | 082 51 35 W |
| Moore Pond | Reservoir | 296 | Fairfield | 39 55 24 N | 082 44 42 W |
| Moore Pond Dam | Dam | 296 | Fairfield | 39 55 24 N | 082 44 42 W |
| Moore Post Office (historical) | Post Office | 160 | Adams | 38 47 55 N | 083 25 42 W |
| Moore Run | Stream | | Belmont | 40 03 34 N | 080 44 01 W |
| Moore Run | Stream | | Belmont | 39 53 40 N | 080 52 38 W |
| Moore Run | Stream | | Clark | 39 58 46 N | 083 49 12 W |
| Moore Run | Stream | | Ross | 39 08 52 N | 082 54 15 W |
| Moore Run | Stream | | Scioto | 38 37 19 N | 083 13 04 W |
| Moore School (historical) | School | 268 | Clermont | 38 58 35 N | 084 09 38 W |
| Moore School (historical) | School | 275 | Harrison | 40 22 13 N | 081 16 19 W |
| Moore School (historical) | School | 337 | Miami | 40 05 04 N | 084 03 03 W |
| Moore School (historical) | School | 197 | Pike | 39 02 10 N | 082 59 50 W |
| Moore-Johns Cemetery | Cemetery | 302 | Clinton | 39 20 50 N | 083 52 39 W |
| Moorefield | Populated Place | 371 | Harrison | 40 11 59 N | 081 10 15 W |
| Moorefield Chapel Cemetery | Cemetery | 341 | Clark | 40 00 42 N | 083 43 53 W |
| Moorefield Methodist Episcopal Cemetery | Cemetery | 373 | Harrison | 40 12 08 N | 081 10 07 W |
| Moorefield Post Office | Post Office | 375 | Harrison | 40 12 00 N | 081 10 14 W |
| Moorefield Square Shopping Center | Locale | 326 | Clark | 39 57 55 N | 083 47 13 W |
| Moorefield Township Hall | Building | 320 | Clark | 39 59 31 N | 083 42 59 W |
| Moorehead Cemetery | Cemetery | 396 | Carroll | 40 32 42 N | 081 00 11 W |
| Moorehead Cemetery | Cemetery | 372 | Licking | 40 07 58 N | 082 34 52 W |
| Moores Cemetery | Cemetery | 302 | Logan | 40 21 12 N | 083 56 08 W |
| Moores Chapel Cemetery | Cemetery | 205 | Adams | 38 47 06 N | 083 18 51 W |
| Moores Corners | Populated Place | 266 | Franklin | 40 03 33 N | 082 57 12 W |
| Moores Fork | Populated Place | 286 | Clermont | 39 11 47 N | 084 01 22 W |
| Moores Fork | Stream | | Clermont | 39 12 09 N | 084 05 41 W |
| Moores Fork Baptist Church | Church | 286 | Clermont | 39 11 49 N | 084 01 23 W |
| Moores Fork Post Office | Post Office | 286 | Clermont | 39 11 45 N | 084 01 20 W |
| Moores Junction | Populated Place | 239 | Perry | 39 42 11 N | 082 06 59 W |
| Moores Landing | Locale | 179 | Athens | 39 12 54 N | 081 43 39 W |
| Moores Run | Stream | | Adams | 38 44 53 N | 083 30 49 W |
| Moores Run | Stream | | Morgan | 39 41 32 N | 081 53 13 W |
| Moores Run | Stream | | Pike | 39 10 38 N | 082 58 13 W |
| Mooresville | Populated Place | 208 | Ross | 39 19 40 N | 082 51 05 W |
| Mooresville Post Office (historical) | Post Office | 205 | Ross | 39 19 43 N | 082 51 07 W |
| Mooretown Methodist Episcopal Cemetery | Cemetery | 259 | Jefferson | 40 31 08 N | 080 50 21 W |
| Moorhead Church | Church | 347 | Holmes | 40 37 45 N | 081 59 47 W |
| Moors Memorial Chapel | Church | 207 | Adams | 38 47 04 N | 083 18 48 W |
| Moors Run | Stream | | Delaware | 40 18 55 N | 083 10 22 W |
| Moose Island | Island | 255 | Tuscarawas | 40 25 40 N | 081 22 25 W |
| Moose Ridge | Ridge | 360 | Monroe | 39 44 11 N | 081 09 20 W |
| Moose Ridge Cemetery | Cemetery | 353 | Monroe | 39 44 35 N | 081 09 15 W |
| Moots Run | Stream | | Licking | 40 05 01 N | 082 35 32 W |
| Morain Ditch | Canal | 289 | Madison | 39 50 32 N | 083 15 16 W |