Liu Chieh (Chinese: 劉鍇; 27 May 1907 – 12 February 1991) was a diplomat of the Republic of China. He represented China at the United Nations from 1962 to 1971, and was the last Permanent Representative of the Republic of China at the UN. On 10 March 1972, Liu was appointed as the Ambassador of the Republic of China to the Republic of the Philippines. He submitted to the National Book on 23 March 1972. He left on 6 June, 1975. Liu died of a cerebral hemorrhage at his home in San Francisco, where he had been living in retirement.