Liu Chih-kung () is a Taiwanese political scientist and diplomat.
Liu graduated from National Chengchi University with a bachelor's degree in diplomacy in 1972 and a master's degree in political science in 1975, writing his master's thesis (å£è¾ÂÃ¥ÂÂå¤Â交çÂÂè«ÂÃ¥ÂÂ實éÂÂï¼Âä¸ÂçÂÂç©©å®Âç§©åºÂ建ç«Âä¹ÂæÂ¢è¨Â) on American statesman Henry Kissinger. He then earned his Ph.D. in political science from the university in 1983. His doctoral dissertation was titled, "The Republic of China in the United Nations General Assembly" (ä¸Âè¯æ°ÂÃ¥ÂÂå¨è¯åÂÂÃ¥ÂÂ大æÂÂçÂÂÃ¥ÂÂè : èÂÂéÂÂÃ¥ÂÂæÂÂÃ¥ÂÂéÂÂç°å¢Âè®Âé·å°ÂÃ¥ÂÂèÂÂè¡Âçºä¹Âå½±é¿).
Liu was Taiwanese representative to Mongolia until 2008, when he was moved to the Czech Republic. By May 2010, Liu became the deputy secretary-general of the National Security Council. In 2012, Liu was named representative of the Republic of China to Canada. He was the ROC representative to the United Kingdom from July 2014 to May 2016.