Maurepas Swamp Wildlife Management Area is a 112,615-acre (45,574 ha)[1] tract of protected area located in parts of Ascension, Livingston, St. John the Baptist, St. James and Tangipahoa Parishes, Louisiana, encircling three sides of Lake Maurepas.

In 2001 the Richard King Mellon Foundation donated 61,633 acres to the Louisiana Department of Wildlife & Fisheries (LDWF).

In 2011 the Land Trust for Louisiana and the National Audubon Society partnered to permanently protect 675 acres of critical migratory bird habitat near the town of Maurepas.

The Coastal Protection and Restoration Authority's (CPRA) Coastal Protection and Restoration Initiative provided $4.5 million and the Louisiana Wildlife and Fisheries Foundation (LWFF) provided $2 million to purchase the land, known as the "MC Davis tract", that joined the existing east and west WMA together.

Invasive species of fern-leaved beggarticks (Bidens ferulifolia), alligator weed (Alternanthera philoxeroides), water hyacinth (Eichhornia crassipes), and common salvinia (Salvinia minima) have overgrown parts of the WMA, requiring controlling action.