Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Oglethorpe | Populated Place | 104 | Macon | 32 17 38 N | 084 03 40 W |
| Oglethorpe Academy | School | 7 | McIntosh | 31 23 38 N | 081 25 42 W |
| Oglethorpe Avenue Elementary School | School | 209 | Clarke | 33 57 48 N | 083 25 20 W |
| Oglethorpe Avenue Historic District | Park | 238 | Clarke | 33 57 45 N | 083 24 33 W |
| Oglethorpe Bay | Bay | 0 | Glynn | 31 07 50 N | 081 29 40 W |
| Oglethorpe Bluff | Cliff | 21 | Wayne | 31 43 23 N | 081 54 15 W |
| Oglethorpe Branch | Stream | | Wayne | 31 43 27 N | 081 54 18 W |
| Oglethorpe Cemetery | Cemetery | 107 | Macon | 32 17 13 N | 084 04 04 W |
| Oglethorpe Church | Church | 291 | DeKalb | 33 53 46 N | 084 19 28 W |
| Oglethorpe City Hall | Building | 98 | Macon | 32 17 41 N | 084 03 37 W |
| Oglethorpe Club | Building | 13 | Chatham | 32 04 14 N | 081 05 41 W |
| Oglethorpe County | Civil | 207 | Oglethorpe | 33 52 00 N | 083 05 00 W |
| Oglethorpe County Courthouse | Building | 213 | Oglethorpe | 33 52 08 N | 083 06 42 W |
| Oglethorpe County Elementary School | School | 238 | Oglethorpe | 33 53 38 N | 083 06 15 W |
| Oglethorpe County High School | School | 234 | Oglethorpe | 33 53 04 N | 083 07 33 W |
| Oglethorpe County Middle School | School | 233 | Oglethorpe | 33 53 02 N | 083 07 31 W |
| Oglethorpe Elementary School | School | 315 | Fulton | 33 45 08 N | 084 24 27 W |
| Oglethorpe Fire Station | Building | 97 | Macon | 32 17 40 N | 084 03 36 W |
| Oglethorpe Homes (subdivision) | Populated Place | 124 | Bibb | 32 49 54 N | 083 38 34 W |
| Oglethorpe Homes (subdivision) | Populated Place | 51 | Richmond | 33 28 10 N | 082 00 01 W |
| Oglethorpe Mall Shopping Center | Locale | 6 | Chatham | 32 00 13 N | 081 07 01 W |
| Oglethorpe Manor | Populated Place | 4 | Glynn | 31 16 11 N | 081 25 57 W |
| Oglethorpe Memorial Gardens | Cemetery | 3 | Glynn | 31 12 58 N | 081 22 33 W |
| Oglethorpe Park | Park | 45 | Richmond | 33 28 38 N | 081 57 43 W |
| Oglethorpe Park | Populated Place | 3 | Glynn | 31 10 06 N | 081 22 50 W |
| Oglethorpe Park (historical) | Park | 292 | Fulton | 33 46 45 N | 084 24 52 W |
| Oglethorpe Plaza Shopping Center | Locale | 61 | Dougherty | 31 34 10 N | 084 06 33 W |
| Oglethorpe Post Office | Post Office | 99 | Macon | 32 17 41 N | 084 03 41 W |
| Oglethorpe Presbyterian Church | Church | 303 | DeKalb | 33 52 36 N | 084 19 53 W |
| Oglethorpe School (historical) | School | 44 | Wayne | 31 43 32 N | 081 56 01 W |
| Oglethorpe Speedway | Locale | 6 | Chatham | 32 05 17 N | 081 12 43 W |
| Oglethorpe Square | Park | 13 | Chatham | 32 04 38 N | 081 05 24 W |
| Oglethorpe Square | Park | 9 | McIntosh | 31 22 05 N | 081 25 48 W |
| Oglethorpe University | School | 308 | DeKalb | 33 52 27 N | 084 19 54 W |
| Ogletree Cemetery | Cemetery | 260 | Meriwether | 32 57 01 N | 084 48 07 W |
| Ogletree Cemetery | Cemetery | 268 | Meriwether | 32 57 40 N | 084 51 30 W |
| Ogletree Cemetery | Cemetery | 247 | Spalding | 33 13 04 N | 084 10 17 W |
| Ogletree Park | Park | 217 | Troup | 33 01 38 N | 085 00 55 W |
| Ogletree Woods (subdivision) | Populated Place | 153 | Muscogee | 32 31 49 N | 084 57 16 W |
| Ohio | Populated Place | 119 | Peach | 32 34 59 N | 083 48 57 W |
| Ohio Lake | Lake | 37 | Brantley | 31 01 03 N | 082 12 13 W |
| Ohoopee | Populated Place | 55 | Toombs | 32 10 49 N | 082 13 10 W |
| Ohoopee Cemetery | Cemetery | 130 | Washington | 32 53 21 N | 082 51 18 W |
| Ohoopee Church | Church | 129 | Washington | 32 53 20 N | 082 51 16 W |
| Ohoopee River | Stream | | Tattnall | 31 54 06 N | 082 06 54 W |
| OIG Hunt Camp | Locale | 162 | Jasper | 33 10 03 N | 083 44 18 W |
| Okapilco Church | Church | 71 | Brooks | 30 53 46 N | 083 38 18 W |
| Okapilco Creek | Stream | | Brooks | 30 45 10 N | 083 29 07 W |
| Okapilco School | School | 109 | Colquitt | 31 14 50 N | 083 48 16 W |
| Okapilco School (historical) | School | 105 | Colquitt | 31 18 41 N | 083 50 06 W |
| Okeetuck Creek | Stream | | Houston | 32 24 14 N | 083 39 06 W |
| Okefenokee Church | Church | 35 | Ware | 31 14 11 N | 082 20 04 W |
| Okefenokee Church Camp | Locale | 36 | Ware | 31 14 21 N | 082 20 09 W |
| Okefenokee Fairgrounds | Locale | 41 | Ware | 31 12 15 N | 082 19 14 W |
| Okefenokee Golf and Country Club | Locale | 41 | Pierce | 31 17 01 N | 082 21 30 W |
| Okefenokee National Wildlife Refuge | Park | 47 | Charlton | 30 44 11 N | 082 07 19 W |
| Okefenokee Swamp | Swamp | 37 | Ware | 30 40 01 N | 082 19 59 W |
| Okefenokee Wilderness | Reserve | 36 | Charlton | 30 48 17 N | 082 18 05 W |
| Okefenokee Wilderness Canoe Trail | Trail | 36 | Charlton | 30 54 36 N | 082 17 02 W |
| Oketeyeconne (historical) | Populated Place | 58 | Clay | 31 38 36 N | 085 04 50 W |
| Oklahoma Cemetery | Cemetery | 122 | Wilcox | 31 52 14 N | 083 35 17 W |
| Oklahoma Church | Church | 125 | Wilcox | 31 52 13 N | 083 35 10 W |
| Oklahoma Hills | Populated Place | 87 | Richmond | 33 24 29 N | 082 03 52 W |
| Okuinn Lake | Reservoir | 71 | Jeff Davis | 31 48 31 N | 082 41 12 W |
| Okuinn Lake | Reservoir | 72 | Jeff Davis | 31 48 37 N | 082 40 54 W |
| Okuinn Lake Dam | Dam | 71 | Jeff Davis | 31 48 31 N | 082 41 12 W |
| Okuinn Lake Dam | Dam | 72 | Jeff Davis | 31 48 37 N | 082 40 54 W |
| Ola | Populated Place | 244 | Henry | 33 26 09 N | 084 02 31 W |
| Old Alabama Road Baptist Church | Church | 327 | Fulton | 34 01 34 N | 084 18 05 W |
| Old Anderson Church | Church | 52 | Tattnall | 32 11 35 N | 082 02 39 W |
| Old Antioch Cemetery | Cemetery | 237 | Floyd | 34 14 03 N | 085 09 11 W |
| Old Antioch Cemetery | Cemetery | 300 | Walker | 34 43 25 N | 085 25 12 W |
| Old Armuchee Cemetery | Cemetery | 198 | Floyd | 34 23 39 N | 085 13 39 W |
| Old Avery Cemetery | Cemetery | 86 | Columbia | 33 37 09 N | 082 12 12 W |
| Old Bethel Cemetery | Cemetery | 144 | Crawford | 32 43 22 N | 083 55 27 W |
| Old Bethel Cemetery | Cemetery | 257 | Heard | 33 18 11 N | 084 58 55 W |
| Old Bethel Cemetery | Cemetery | 83 | Jefferson | 32 53 36 N | 082 27 45 W |
| Old Bethel Church | Church | 223 | Butts | 33 19 55 N | 083 59 05 W |
| Old Bethel Church | Church | 83 | Jefferson | 32 53 36 N | 082 27 47 W |
| Old Bethel Church | Church | 85 | Jefferson | 32 56 59 N | 082 27 37 W |
| Old Bethel Church | Church | 236 | Walker | 34 50 04 N | 085 16 53 W |
| Old Bethel Church | Church | 41 | Wayne | 31 37 17 N | 082 00 54 W |
| Old Bethel Church (historical) | Church | 336 | Carroll | 33 43 32 N | 085 00 03 W |
| Old Bethel Church (historical) | Church | 97 | Randolph | 31 49 16 N | 084 54 24 W |
| Old Bethesda Cemetery | Cemetery | 107 | Washington | 32 48 01 N | 082 51 05 W |
| Old Bethlehem Cemetery | Cemetery | 243 | Coweta | 33 20 47 N | 084 50 19 W |
| Old Bethlehem Church | Church | 237 | Coweta | 33 20 45 N | 084 50 19 W |
| Old Beulah Cemetery | Cemetery | 85 | Candler | 32 29 52 N | 082 09 19 W |
| Old Beulah Church Cemetery | Cemetery | 176 | Hancock | 33 09 03 N | 083 03 05 W |
| Old Big Creek Cemetery | Cemetery | 333 | Fulton | 34 02 41 N | 084 15 23 W |
| Old Bill Knob | Summit | 980 | Towns | 34 56 57 N | 083 41 23 W |
| Old Blue Creek Cemetery | Cemetery | 452 | White | 34 36 45 N | 083 41 08 W |
| Old Breedlove Cemetery | Cemetery | 235 | Walton | 33 52 03 N | 083 38 37 W |
| Old Brewster School (historical) | School | 271 | Polk | 33 57 14 N | 085 21 03 W |
| Old Burch Cemetery | Cemetery | 598 | Towns | 34 57 33 N | 083 46 16 W |
| Old Calvary Cemetery | Cemetery | 238 | Pike | 33 04 30 N | 084 26 20 W |
| Old Calvary Church | Church | 238 | Pike | 33 04 31 N | 084 26 21 W |
| Old Camp Branch | Stream | | Rabun | 34 57 45 N | 083 11 28 W |
| Old Camp Cemetery | Cemetery | 323 | Carroll | 33 33 25 N | 085 08 03 W |
| Old Camp Church | Church | 323 | Carroll | 33 33 26 N | 085 08 05 W |
| Old Camp Ground Church (historical) | Church | 113 | Clay | 31 39 25 N | 085 01 29 W |
| Old Campground Cemetery | Cemetery | 55 | Toombs | 31 57 50 N | 082 16 45 W |
| Old Canon Cemetery | Cemetery | 282 | Hart | 34 21 30 N | 083 03 48 W |
| Old Canon Church | Church | 280 | Hart | 34 21 32 N | 083 03 48 W |
| Old Canoochee Cemetery | Cemetery | 87 | Emanuel | 32 36 00 N | 082 12 59 W |
| Old Canoochee Church | Church | 87 | Emanuel | 32 35 56 N | 082 13 00 W |
| Old Carrollton Cemetery | Cemetery | 363 | Carroll | 33 37 53 N | 084 59 01 W |
| Old Carrollton Church | Church | 368 | Carroll | 33 37 56 N | 084 59 02 W |
| Old Cedar Creek | Populated Place | 287 | Cherokee | 34 06 25 N | 084 38 55 W |
| Old Cedar Crossing Cemetery | Cemetery | 70 | Toombs | 32 01 15 N | 082 24 17 W |