琼崖海棠/红厚壳（学名：Calophyllum inophyllum）为金丝桃科红厚壳属的植物。

常绿乔木，暗褐或灰褐色树皮；椭圆形或宽椭圆形的叶子对生，顶端钝圆或微缺，厚革质有光泽，全缘或波状，侧脉细密；总状花序或圆锥花序，花白色有香气；球形核果，熟时为黄色、肉质。

Calophyllum inophyllum is a large evergreen, commonly called Alexandrian laurel balltree, beach calophyllum, beach touriga, beautyleaf, Borneo-mahogany, Indian doomba oiltree, Indian-laurel, laurelwood, red poon, satin touriga, and tacamahac-tree. It is native from East Africa, southern coastal India to Malesia and Australia.