Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Alvernia Rest Home | Building | 323 | Cuyahoga | 41 22 49 N | 081 42 40 W |
| Alverno Studio | Building | 201 | Lucas | 41 42 39 N | 083 42 19 W |
| Alvin I Yoder Farm Cemetery | Cemetery | 372 | Holmes | 40 30 48 N | 081 49 27 W |
| Alvordton | Populated Place | 262 | Williams | 41 39 57 N | 084 26 13 W |
| Alward School (historical) | School | 354 | Licking | 40 00 58 N | 082 37 35 W |
| Am-Beth Acres | Populated Place | 280 | Clermont | 39 05 08 N | 084 16 51 W |
| Amaden Ditch | Canal | 253 | Defiance | 41 22 42 N | 084 47 03 W |
| Amanda | Populated Place | 281 | Fairfield | 39 38 58 N | 082 44 40 W |
| Amanda Airport | Airport | 269 | Fairfield | 39 38 07 N | 082 44 17 W |
| Amanda Baptist Cemetery | Cemetery | 249 | Allen | 40 42 34 N | 084 16 47 W |
| Amanda Cemetery | Cemetery | 196 | Butler | 39 29 26 N | 084 24 39 W |
| Amanda Church | Church | 250 | Allen | 40 42 33 N | 084 16 49 W |
| Amanda Elementary School | School | 195 | Butler | 39 28 46 N | 084 24 32 W |
| Amanda Elementary School | School | 285 | Fairfield | 39 39 06 N | 082 44 26 W |
| Amanda Junior High School | School | 194 | Butler | 39 28 44 N | 084 24 25 W |
| Amanda Post Office | Post Office | 282 | Fairfield | 39 39 00 N | 082 44 40 W |
| Amanda Presbyterian Cemetery | Cemetery | 281 | Fairfield | 39 38 52 N | 082 44 33 W |
| Amanda Presbyterian Church | Church | 281 | Fairfield | 39 38 52 N | 082 44 31 W |
| Amanda Station | Locale | 195 | Butler | 39 28 52 N | 084 24 26 W |
| Amanda Township Cemetery | Cemetery | 294 | Fairfield | 39 41 14 N | 082 45 55 W |
| Amann Reservoir | Reservoir | 339 | Morrow | 40 42 48 N | 082 49 24 W |
| Amann Reservoir Dam | Dam | 339 | Morrow | 40 42 48 N | 082 49 24 W |
| Amarine School (historical) | School | 320 | Union | 40 15 13 N | 083 25 45 W |
| Amasa Stone Chapel | Church | 210 | Cuyahoga | 41 30 18 N | 081 36 32 W |
| Amazing Grace African Methodist Episcopal Zion Church | Church | 187 | Lucas | 41 39 22 N | 083 35 13 W |
| Amazing Grace Evangelical Baptist Church | Church | 282 | Mahoning | 41 06 31 N | 080 39 29 W |
| Amazing Grace Tabernacle | Church | 253 | Hancock | 40 58 24 N | 083 28 24 W |
| Ambassador Bible Institute | School | 341 | Madison | 39 52 11 N | 083 29 42 W |
| Ambassadors For Christ | Church | | Cuyahoga | 41 36 54 N | 081 30 09 W |
| Amberley | Populated Place | 243 | Hamilton | 39 12 17 N | 084 25 41 W |
| Ambler Heights | Populated Place | 247 | Cuyahoga | 41 29 50 N | 081 36 03 W |
| Ambler Heights Historic District | Park | 247 | Cuyahoga | 41 29 50 N | 081 36 02 W |
| Ambler Park | Park | 231 | Cuyahoga | 41 29 40 N | 081 36 11 W |
| Amboy | Populated Place | 214 | Ashtabula | 41 55 38 N | 080 36 54 W |
| Amboy School | School | 214 | Ashtabula | 41 55 26 N | 080 36 52 W |
| Amboy Township Cemetery | Cemetery | 224 | Fulton | 41 41 13 N | 083 54 44 W |
| Ambrose Baptist Church | Church | 221 | Fulton | 41 37 25 N | 084 15 15 W |
| Ambrose Cemetery | Cemetery | 325 | Highland | 39 10 41 N | 083 40 16 W |
| Ambrose Chapel (historical) | Church | 327 | Highland | 39 10 39 N | 083 40 14 W |
| Amelia | Populated Place | 267 | Clermont | 39 01 42 N | 084 13 04 W |
| Amelia Branch Clermont County Public Library | Building | 268 | Clermont | 39 01 40 N | 084 13 16 W |
| Amelia Elementary School | School | 264 | Clermont | 39 01 42 N | 084 12 60 W |
| Amelia High School | School | 262 | Clermont | 39 03 44 N | 084 13 50 W |
| Amelia Independent Order of Oddfellows Cemetery | Cemetery | 268 | Clermont | 39 02 06 N | 084 13 34 W |
| Amelia Methodist Episcopal Cemetery | Cemetery | 262 | Clermont | 39 01 42 N | 084 12 55 W |
| Amelia Middle School | School | 268 | Clermont | 39 03 40 N | 084 14 50 W |
| Amelia Post Office | Post Office | 268 | Clermont | 39 01 40 N | 084 13 05 W |
| American Addition Park | Park | 250 | Franklin | 39 59 41 N | 082 57 40 W |
| American Cemetery | Cemetery | 170 | Hamilton | 39 09 58 N | 084 24 50 W |
| American Church | Church | 296 | Crawford | 40 48 41 N | 083 04 28 W |
| American Eagle Shoal | Bar | 174 | Erie | 41 35 48 N | 082 45 13 W |
| American Hungarian Reformed Church | Church | 265 | Mahoning | 41 06 05 N | 080 40 04 W |
| American Mall Shopping Center | Locale | 258 | Allen | 40 44 18 N | 084 09 33 W |
| American Muslim Mission Center | Church | 298 | Mahoning | 41 05 37 N | 080 39 27 W |
| American Muslim Mission Center | Church | 326 | Summit | 41 04 52 N | 081 33 10 W |
| American Sportsmen Club | Locale | 364 | Stark | 40 47 25 N | 081 14 52 W |
| Americana Amusement Park (historical) | Park | 186 | Butler | 39 26 40 N | 084 26 03 W |
| Amerine Cemetery | Cemetery | 306 | Union | 40 15 00 N | 083 23 37 W |
| Ames Plaza Shopping Center | Locale | 352 | Medina | 41 14 45 N | 081 50 22 W |
| Amesville | Populated Place | 193 | Athens | 39 24 02 N | 081 57 21 W |
| Amesville Elementary School | School | 202 | Athens | 39 24 09 N | 081 57 20 W |
| Amesville Post Office | Post Office | 191 | Athens | 39 24 00 N | 081 57 21 W |
| Amherst | Populated Place | 210 | Lorain | 41 23 52 N | 082 13 21 W |
| Amherst Church of Christ | Church | 196 | Lorain | 41 24 24 N | 082 13 15 W |
| Amherst City Hall | Building | 207 | Lorain | 41 23 53 N | 082 13 39 W |
| Amherst Congregational United Church of Christ | Church | 210 | Lorain | 41 23 47 N | 082 13 36 W |
| Amherst Elementary School | School | 335 | Stark | 40 50 07 N | 081 30 52 W |
| Amherst Heights | Populated Place | 316 | Stark | 40 49 48 N | 081 30 57 W |
| Amherst Hospital | Hospital | 207 | Lorain | 41 23 57 N | 082 13 27 W |
| Amherst Park Avenue United Methodist Church | Church | 210 | Lorain | 41 23 53 N | 082 13 23 W |
| Amherst Park Shopping Center | Locale | 308 | Stark | 40 48 52 N | 081 31 01 W |
| Amherst Plaza Shopping Center | Locale | 195 | Lorain | 41 24 58 N | 082 12 06 W |
| Amherst Post Office | Post Office | 209 | Lorain | 41 23 55 N | 082 13 28 W |
| Amherst Post Office | Post Office | 186 | Lorain | 41 27 10 N | 082 10 55 W |
| Amherst Public Library | Building | 210 | Lorain | 41 23 53 N | 082 13 21 W |
| Amherst Township Hall | Building | 224 | Lorain | 41 23 19 N | 082 11 24 W |
| Amherst Township Park | Park | 219 | Lorain | 41 24 06 N | 082 11 16 W |
| Amicks Reservoir | Reservoir | 346 | Morrow | 40 42 48 N | 082 49 12 W |
| Amicks Upground Reservoir Dam | Dam | 346 | Morrow | 40 42 48 N | 082 49 12 W |
| Amish Cemetery | Cemetery | 281 | Fairfield | 39 43 18 N | 082 30 13 W |
| Amish Cemetery | Cemetery | 362 | Geauga | 41 24 38 N | 081 07 31 W |
| Amish Cemetery | Cemetery | 392 | Stark | 40 49 45 N | 081 11 05 W |
| Amish Church (historical) | Church | 308 | Ashtabula | 41 30 30 N | 080 58 20 W |
| Amish School | School | 368 | Ashland | 40 55 27 N | 082 24 60 W |
| Amish School | School | 317 | Hardin | 40 34 27 N | 083 35 26 W |
| Amish School | School | 289 | Hardin | 40 37 09 N | 083 31 39 W |
| Amity | Populated Place | 259 | Hamilton | 39 12 20 N | 084 24 15 W |
| Amity | Populated Place | 343 | Knox | 40 28 15 N | 082 22 43 W |
| Amity | Populated Place | 279 | Madison | 40 04 07 N | 083 15 05 W |
| Amity | Populated Place | 302 | Montgomery | 39 47 21 N | 084 22 01 W |
| Amity Cemetery | Cemetery | 318 | Coshocton | 40 21 25 N | 081 48 59 W |
| Amity Cemetery | Cemetery | 368 | Knox | 40 28 18 N | 082 22 28 W |
| Amity Church | Church | 211 | Belmont | 39 52 12 N | 080 50 18 W |
| Amity Elementary School | School | 262 | Hamilton | 39 12 30 N | 084 23 35 W |
| Amity Post Office (historical) | Post Office | 302 | Montgomery | 39 47 20 N | 084 21 60 W |
| Amlin | Populated Place | 287 | Franklin | 40 04 37 N | 083 10 52 W |
| Amlin Post Office | Post Office | 287 | Franklin | 40 04 35 N | 083 10 50 W |
| Amolsch Ditch | Canal | 178 | Lucas | 41 40 12 N | 083 26 54 W |
| Amos McDaniel Elementary School | School | 305 | Stark | 40 45 11 N | 081 22 26 W |
| Amos Memorial Library | Building | 293 | Shelby | 40 17 13 N | 084 09 12 W |
| Amos Shopping Center | Locale | 267 | Franklin | 40 02 20 N | 082 57 39 W |
| Amoy | Populated Place | 383 | Richland | 40 49 43 N | 082 33 12 W |
| Amoy Post Office (historical) | Post Office | 384 | Richland | 40 49 45 N | 082 33 10 W |
| Amsden | Populated Place | 222 | Seneca | 41 12 58 N | 083 19 43 W |
| Amsden Post Office | Post Office | 222 | Seneca | 41 13 00 N | 083 19 45 W |
| Amsterdam | Populated Place | 285 | Jefferson | 40 28 25 N | 080 55 22 W |
| Amsterdam | Populated Place | 359 | Licking | 39 57 27 N | 082 22 42 W |
| Amsterdam Cemetery | Cemetery | 305 | Carroll | 40 28 31 N | 080 55 29 W |
| Amsterdam Post Office | Post Office | 286 | Jefferson | 40 28 25 N | 080 55 24 W |
| Amstutz Hall | Building | 351 | Ashland | 40 51 46 N | 082 19 27 W |