Longdong Town (simplified Chinese: 龙洞镇; traditional Chinese: 龍洞鎮; pinyin: Lóngdòng Zhèn) is an urban town in Xiangxiang City, Hunan Province, People's Republic of China.

The town is divided into 29 villages and two communities, the following areas: Kenzhichang Community, Tongluowan Community, Lechang Village, Jianshi Village, Quanchong Village, Shitou Village, Jiepai Village, Hemu Village, Jiantang Village, Longdong Village, Zhongchao Village, Nanxiang Village, Qixing Village, Yaohu Village, Quanhu Village, Yamiao Village, Changtai Village, Kangjia Village, Shangyi Village, Datian Village, Yinzi Village, Xiangjiang Village, Jiyi Village, and Xiaotian Village.