| Official Name: | Octagon, Alabama |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Alabama#USA |
| Pushpin Label: | Octagon |
| Pushpin Map Caption: | Location within the state of Alabama |
| Pushpin Mapsize: | 200 |
| Coordinates: | 32.204°N -87.755°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name: | United States |
| Subdivision Name1: | Alabama |
| Subdivision Name2: | Marengo |
| Elevation Ft: | 282 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP code |
| Area Code: | 334 |
Octagon is an unincorporated community in Marengo County, Alabama, United States.[1] Octagon had a post office at one time, but it no longer exists.
The community of Octagon obtained its name from the Bethlehem Baptist Church. The first building for this church was an octagonal structure, built by George Washington Barkley and his sons after the American Civil War.[2] At one time the community also had a Methodist church, a two-story school, general store, cotton gin, and grist mill. Only the Baptist church remains.[3]
Octagon is located at 32.204°N -87.755°W and has an elevation of 282feet.[1]