Liu Menggeng (; 1881 – after 1937) was a politician and physician of the Republic of China and Manchukuo. He was born in Qinhuangdao, Hebei.
Background and disappearance Menggeng was the 8th Republican mayor of Beijing. He was affiliated with the Zhili clique, which was part of the Beiyang government. After the creation of Manchukuo, he accepted a Japanese offer to be the collaborationist governor of Rehe Province. His whereabouts after leaving office are unknown.徐主編（2007）、2508頁。 天津市河北区政務網 劉ほか編（1995）、1195頁。 「満州国退官者」『東京朝日新聞』1937年7月1日夕刊。
See also List of people who disappeared
References
Bibliography
天津市河北区政務網（天津市河北区人民政府ホームページ）