| Official Name: | Belle Fontaine, Alabama |
| Settlement Type: | Unincorporated community Census-designated place |
| Pushpin Map: | Alabama#USA |
| Pushpin Label: | Belle Fontaine |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Alabama |
| Subdivision Type2: | County |
| Subdivision Name2: | Mobile |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.96 |
| Area Land Km2: | 4.02 |
| Area Water Km2: | 0.94 |
| Area Total Sq Mi: | 1.92 |
| Area Land Sq Mi: | 1.55 |
| Area Water Sq Mi: | 0.36 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 613 |
| Population Density Km2: | 152.38 |
| Population Density Sq Mi: | 394.72 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 7 |
| Coordinates: | 30.4936°N -88.1036°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 36582[3] |
| Area Code: | 251 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 113875 |
| Blank1 Name: | FIPS code |
| Blank1 Info: | 01-05212 |
Belle Fontaine (; in French bɛl fɔ̃ˈtɛn/) is an unincorporated community and census-designated place (CDP) in Mobile County, Alabama, United States, on the western shore of Mobile Bay. It is located south of the city of Mobile, along the stretch of shore between the Deer River and the Fowl River. As of the 2020 census, its population was 613.[2]
The Belle Fontaine shoreline experiences the occasional jubilee, a rare phenomenon in which fish and crustaceans swarm in the water, just off the beach.