兰撒（学名：Lansium domesticum；马来语：langsat）又译作冷刹、芦菇或杜古（马来语：duku）、龙贡（Long Kong），原产于马来群岛的常绿乔木，亚洲热带地区广泛栽培的果树。果实簇生于老枝或枝干旁，果肉味道像柚子，味道清甜而带点看酸涩，是东南亚上等水果之一。**称为兰撒果，香港称为芦菇，俗称「泰国黄皮」。这种水果经常附有很生猛的蝎子，因为蝎子最喜欢吃芦菇。由于芦菇果实空隙中会有蝎子藏匿，所以进食时应格外小心，建议拿着芦菇的茎部，放进水内大力摇晃，再摘下个别芦菇。

Lansium parasiticum (syn. Lansium domesticum), also known as langsat (/ˈlɑːŋsɑːt/) or lanzones, is a species of tree in the Mahogany family. The plant, which originates from western Southeast Asia, bears edible fruit. It is the provincial flower for the Indonesian province of South Sumatra.