Liu Xianjue (Chinese: 刘先觉; 12 December 1931 – 16 May 2019) was a Chinese architectural historian and educator. He studied under all "Four Modern Masters in Architecture" of China and taught at Southeast University for more than 50 years. He advocated for the protection of architectural heritage in Nanjing and advised the government of Macau in its successful application for World Heritage status for the Historic Centre of Macau.