I don't suppose there are a lot that are known outside of Acadie, but there are some that have been important to the Acadian culture - Antonine Maillet, Édith Pinet, Jean-Yves Thériault (well, he's more sports, not culture)...Roméo Leblanc, Edith Butler... Again, I don't think they would be of general interest but I would hope Acadians would be interested.