Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Old Town Creek | Stream | | Dallas | 32 18 46 N | 086 49 10 W |
| Old Town Creek | Stream | | Macon | 32 19 49 N | 085 58 04 W |
| Old Town Creek | Stream | | Perry | 32 43 02 N | 087 15 34 W |
| Old Town Creek | Stream | | Walker | 33 48 56 N | 087 03 21 W |
| Old Town Creek Church | Church | 93 | Dallas | 32 15 55 N | 086 53 17 W |
| Old Town Creek Church | Church | 199 | Lawrence | 34 28 10 N | 087 26 03 W |
| Old Town Creek Watershed Dam Number 24 | Dam | 113 | Bullock | 32 03 55 N | 085 48 18 W |
| Old Town Creek Watershed Dam Number 25 | Dam | 118 | Bullock | 32 03 13 N | 085 48 30 W |
| Old Town Creek Watershed Dam Number 26 | Dam | 113 | Bullock | 32 03 19 N | 085 47 48 W |
| Old Town Creek Watershed Dam Number 31 | Dam | 89 | Bullock | 32 10 43 N | 085 47 06 W |
| Old Town Creek Watershed Dam Number 32 | Dam | 105 | Bullock | 32 11 49 N | 085 43 54 W |
| Old Town Creek Watershed Dam Number 37 | Dam | 101 | Bullock | 32 10 19 N | 085 44 42 W |
| Old Town Creek Watershed Lake Number 24 | Reservoir | 113 | Bullock | 32 03 55 N | 085 48 18 W |
| Old Town Creek Watershed Lake Number 25 | Reservoir | 118 | Bullock | 32 03 13 N | 085 48 30 W |
| Old Town Creek Watershed Lake Number 26 | Reservoir | 113 | Bullock | 32 03 19 N | 085 47 48 W |
| Old Town Creek Watershed Lake Number Thirty-one | Reservoir | 89 | Bullock | 32 10 43 N | 085 47 06 W |
| Old Town Creek Watershed Lake Number Thirty-seven | Reservoir | 101 | Bullock | 32 10 19 N | 085 44 42 W |
| Old Town Creek Watershed Lake Number Thirty-two | Reservoir | 105 | Bullock | 32 11 49 N | 085 43 54 W |
| Old Town Historic District | Park | 38 | Dallas | 32 24 33 N | 087 01 24 W |
| Old Town Post Office (historical) | Post Office | 53 | Coffee | 31 11 42 N | 087 08 53 W |
| Old Town Shopping Center | Locale | 76 | Montgomery | 32 20 19 N | 086 15 33 W |
| Old Trinity Cemetery | Cemetery | 91 | Pickens | 33 15 13 N | 087 57 57 W |
| Old Union Baptist Church | Church | 47 | Marengo | 32 03 43 N | 087 53 14 W |
| Old Union Branch | Stream | | Marshall | 34 29 54 N | 086 14 24 W |
| Old Union Cemetery | Cemetery | 88 | Clarke | 31 38 04 N | 087 53 16 W |
| Old Union Cemetery | Cemetery | 165 | Coosa | 32 52 38 N | 086 17 52 W |
| Old Union Cemetery | Cemetery | 46 | Marengo | 32 03 41 N | 087 53 12 W |
| Old Union Cemetery | Cemetery | 264 | Marion | 34 15 50 N | 087 40 15 W |
| Old Union Cemetery | Cemetery | 356 | Marshall | 34 30 27 N | 086 14 53 W |
| Old Union Church | Church | 160 | Bullock | 32 03 47 N | 085 56 39 W |
| Old Union Church | Church | 144 | Crenshaw | 31 30 25 N | 086 14 34 W |
| Old Union Church | Church | 151 | Fayette | 33 51 10 N | 087 52 47 W |
| Old Union Church | Church | 241 | Lauderdale | 34 56 17 N | 087 14 00 W |
| Old Union Church | Church | 265 | Marion | 34 15 50 N | 087 40 13 W |
| Old Union Church | Church | 354 | Marshall | 34 30 27 N | 086 14 52 W |
| Old Union Church | Church | 205 | Winston | 34 00 57 N | 087 27 16 W |
| Old Union Grove Church | Church | 131 | Bullock | 31 57 37 N | 085 40 06 W |
| Old Union School | School | 264 | Marion | 34 15 13 N | 087 39 59 W |
| Old Union School (historical) | School | 267 | Marion | 34 15 47 N | 087 40 07 W |
| Old Vernon (historical) | Locale | 42 | Autauga | 32 24 28 N | 086 37 27 W |
| Old Vickers Cemetery | Cemetery | 248 | Tallapoosa | 33 04 16 N | 085 43 14 W |
| Old Washington Church | Church | 30 | Washington | 31 20 43 N | 088 05 22 W |
| Old White Hall (historical) | Populated Place | 58 | Marengo | 32 15 49 N | 087 36 30 W |
| Old Wiggins Cemetery | Cemetery | 110 | Henry | 31 29 01 N | 085 23 13 W |
| Old Zion Cemetery | Cemetery | 131 | Henry | 31 33 14 N | 085 10 49 W |
| Old Zion Church | Church | 131 | Henry | 31 33 15 N | 085 10 49 W |
| Old Zion Church | Church | 149 | Walker | 33 54 57 N | 087 23 16 W |
| Old Zion Church (historical) | Church | 246 | Marion | 34 16 53 N | 087 43 15 W |
| Old Zion Hill Cemetery | Cemetery | 72 | Barbour | 32 01 25 N | 085 04 15 W |
| Oldacre Hollow | Valley | | Morgan | 34 22 38 N | 086 49 07 W |
| Olde Acres (subdivision) | Populated Place | 77 | Montgomery | 32 21 25 N | 086 14 50 W |
| Older Hill Cemetery | Cemetery | 106 | Wilcox | 32 00 04 N | 087 12 26 W |
| Oldfield | Populated Place | 170 | Talladega | 33 12 10 N | 086 13 05 W |
| Oldfield Baptist Church | Church | 161 | Talladega | 33 12 00 N | 086 13 01 W |
| Oldham Cemetery | Cemetery | 165 | Shelby | 33 17 04 N | 086 45 47 W |
| Oldham Chapel | Church | 158 | St. Clair | 33 50 24 N | 086 07 06 W |
| Oldham Creek | Stream | | Bibb | 33 06 01 N | 087 11 22 W |
| Oleander | Populated Place | 304 | Marshall | 34 24 50 N | 086 31 41 W |
| Oleander Church | Church | 340 | Marshall | 34 24 55 N | 086 32 58 W |
| Oleander Pond | Lake | 3 | Mobile | 30 14 51 N | 088 05 04 W |
| Olive Branch Baptist Church | Church | 335 | Clay | 33 18 28 N | 085 47 51 W |
| Olive Branch Cemetery | Cemetery | 335 | Clay | 33 18 28 N | 085 47 48 W |
| Olive Branch Cemetery | Cemetery | 130 | Conecuh | 31 29 34 N | 086 55 41 W |
| Olive Branch Church | Church | 102 | Butler | 31 36 08 N | 086 39 14 W |
| Olive Branch Church | Church | 131 | Conecuh | 31 29 36 N | 086 55 41 W |
| Olive Branch School (historical) | School | 99 | Butler | 31 36 08 N | 086 39 19 W |
| Olive Branch School (historical) | School | 208 | Clay | 33 18 27 N | 086 47 49 W |
| Olive Hill Cemetery | Cemetery | 174 | Lamar | 33 57 21 N | 088 00 20 W |
| Olive Hill School (historical) | School | 220 | Lauderdale | 34 56 03 N | 087 28 24 W |
| Olive J Dodge Elementary School | School | 34 | Mobile | 30 38 09 N | 088 09 50 W |
| Oliver | Populated Place | 200 | Lauderdale | 34 48 39 N | 087 15 01 W |
| Oliver Cemetery | Cemetery | 91 | Lowndes | 32 03 18 N | 086 51 17 W |
| Oliver Church | Church | 214 | Lauderdale | 34 48 53 N | 087 15 35 W |
| Oliver Church (historical) | Church | 127 | Monroe | 31 28 01 N | 087 19 33 W |
| Oliver Creek | Stream | | Lawrence | 34 35 27 N | 087 22 54 W |
| Oliver Creek | Stream | | Macon | 32 30 19 N | 085 43 48 W |
| Oliver Dam | Dam | 106 | Russell | 32 30 60 N | 084 59 49 W |
| Oliver Elementary School | School | 219 | Jefferson | 33 32 13 N | 086 43 57 W |
| Oliver Heights (subdivision) | Populated Place | 66 | Tuscaloosa | 33 14 17 N | 087 35 36 W |
| Oliver Junior High School | School | 156 | Bullock | 32 04 41 N | 085 35 46 W |
| Oliver Lock and Dam | Dam | 29 | Tuscaloosa | 33 12 42 N | 087 35 10 W |
| Oliver School (historical) | School | 213 | Lauderdale | 34 48 52 N | 087 15 32 W |
| Oliver-Bedingfield Memorial Cemetery | Cemetery | 198 | Lauderdale | 34 49 54 N | 087 18 26 W |
| Olivers Chapel | Church | 322 | Cherokee | 34 14 27 N | 085 49 49 W |
| Olivers Chapel | Church | 68 | Monroe | 31 49 14 N | 087 10 31 W |
| Olivers Ferry (historical) | Crossing | 1 | Monroe | 31 29 11 N | 087 34 30 W |
| Olivers Lake (subdivision) | Populated Place | 94 | Coffee | 31 20 16 N | 085 50 10 W |
| Olivet Church (historical) | Church | 210 | Jackson | 34 38 54 N | 085 57 01 W |
| Olivet Missionary Baptist Church | Church | 6 | Mobile | 30 43 39 N | 088 04 19 W |
| Olland (subdivision) | Populated Place | 160 | Colbert | 34 45 34 N | 087 40 33 W |
| Ollie | Populated Place | 129 | Monroe | 31 28 18 N | 087 20 32 W |
| Olmsted (historical) | Locale | 95 | Tuscaloosa | 33 10 44 N | 087 24 33 W |
| Olney | Populated Place | 88 | Pickens | 33 08 28 N | 088 02 19 W |
| Olson Pond | Reservoir | 104 | Lowndes | 32 00 14 N | 086 33 37 W |
| Olustee | Populated Place | 125 | Pike | 31 54 11 N | 086 09 45 W |
| Olustee Creek | Stream | | Crenshaw | 31 52 27 N | 086 10 46 W |
| Olusty Creek (historical) | Locale | 115 | Crenshaw | 31 56 54 N | 086 11 33 W |
| Olympia Spa Country Club | Locale | 84 | Houston | 31 07 16 N | 085 24 22 W |
| Omaha | Populated Place | 396 | Randolph | 33 18 09 N | 085 18 37 W |
| Omar (historical) | Locale | 137 | Elmore | 32 30 47 N | 085 59 00 W |
| Omar Post Office (historical) | Post Office | 137 | Elmore | 32 30 47 N | 085 58 60 W |
| Omega | Populated Place | 119 | Bullock | 31 58 34 N | 085 47 06 W |
| Omega (historical) | Locale | 63 | Washington | 31 36 41 N | 088 25 48 W |
| Omega Assembly of God Church | Church | 134 | Dale | 31 28 48 N | 085 27 55 W |
| Omega Baptist Church | Church | 213 | Winston | 34 01 28 N | 087 13 01 W |
| Omega Cemetery | Cemetery | 133 | Dale | 31 28 47 N | 085 27 58 W |
| Omni (subdivision) | Populated Place | 102 | Coffee | 31 19 24 N | 085 48 40 W |
| OMNI Radio Tower | Tower | 180 | Limestone | 34 38 53 N | 086 56 22 W |
| Omusee Creek | Stream | | Houston | 31 16 34 N | 085 06 53 W |
| Omusee Creek Public Use Area | Park | 40 | Houston | 31 16 36 N | 085 07 01 W |