| Official Name: | Nanafalia, Alabama |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Alabama |
| Pushpin Label: | Nanafalia |
| Coordinates: | 32.113°N -87.9876°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name: | United States |
| Subdivision Name1: | Alabama |
| Subdivision Name2: | Marengo |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 2.17 |
| Area Land Sq Mi: | 2.17 |
| Area Water Sq Mi: | 0.00 |
| Elevation Ft: | 213 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 75 |
| Population Density Sq Mi: | 34.56 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP code |
| Postal Code: | 36764 |
| Area Code: | 334 |
| Blank Name: | FIPS code |
| Blank Info: | 01-53208 |
| Unit Pref: | Imperial |
Nanafalia is an unincorporated community and census-designated place (CDP) in Marengo County, Alabama, United States. As of the 2020 census, its population was 75,[2] down from 94 at the 2010 census. The community is located on a ridge above the Tombigbee River, and the name is derived from the Choctaw words for long hill.[3] Nanafalia has a post office with a zip code of 36764.
Nanafalia is in southwestern Marengo County, along Alabama State Route 10. State Route 69 forms the western border of the CDP. Linden, the county seat, is to the northeast.
The Nanafalia CDP has an area of, all land.[1] The community is on a flat-topped ridge which drains north to South Double Creek and south to an unnamed tributary of Horse Creek. Both named creeks flow west to the Tombigbee River.
As of the 2010 United States Census, there were 94 people living in the CDP. The racial makeup of the CDP was 57.4% White, 40.4% Black and 2.1% from two or more races.