Big Branch, Louisiana
# Big Branch, Louisiana

Big Branch is an unincorporated community in St. Tammany Parish, Louisiana, United States. The community is located on U. S. Route 190 5 mi (8.0 km) southeast of Mandeville and 3.5 miles northwest of Lacombe.

The Big Branch Marsh National Wildlife Refuge lies along the coast of Lake Pontchartrain south of the community between Mandeville and Slidell.

