| Belle Alliance | |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Louisiana |
| Subdivision Type2: | Parish |
| Subdivision Name2: | Assumption |
| Pushpin Map: | Louisiana |
| Pushpin Map Caption: | Location of Belle Alliance in Louisiana |
| Coordinates: | 30.0514°N -91.0203°W |
| Area Total Sq Mi: | 2.5 |
| Area Land Sq Mi: | 2.5 |
| Area Water Sq Mi: | 0.0 |
| Elevation Ft: | 26 |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
| Area Code: | 225 |
Belle Alliance is an unincorporated community in Assumption Parish, Louisiana, United States. It is part of the Pierre Part Micropolitan Statistical Area.
Belle Alliance is named after the Belle Alliance Plantation[1] located on the east bank of Bayou Lafourche in Assumption Parish, about five miles (8 km) out of Donaldsonville. During the 1770s, this 7000acres plot was granted to Don Juan Vives, a physician and military officer of the Spanish government.[2] The actual Belle Alliance Plantation was built by a successful sugar planter Charles Anton Kock, also owner of St. Emma Plantation around 1846.[3]
Today, the site is known as the community of Belle Alliance. The plantation is listed on the National Register of Historic Places.