Domaine FL (Fournier Longchamps) is a family-owned winery located in Rochefort-sur-Loire, in the Anjou region of the Loire Valley, France. It was founded in 2006 by Philip Fournier, who named the winery by combining his parents' surnames: Fournier and Longchamps.

Since 2009, his son Julien Fournier has taken over the management of the estate. The winery spans 43 hectares of vineyards across several appellations, including Savennières, Roche aux Moines, Anjou Blanc, Anjou Villages, Coteaux du Layon, Coteaux du Layon 1er Cru Chaume, and Quarts de Chaume Grand Cru.