Princess Supreme Gyeguk (Korean: 계국대장공주; Hanja: 薊國大長公主; c.1285 – 15 January 1316; lit. 'Princess-Aunt of the State of Gye'), also known as Princess of Han State (Korean: 한국공주; Hanja: 韓國公主) and Grand Princess of Han State (Korean: 한국장공주; Hanja: 韓國長公主) was a Yuan Dynasty Imperial family member as the great-granddaughter of Kublai Khan and became a Korean queen consort though her marriage with Chungseon of Goryeo. She was the second Mongol ethnic queen consort from Yuan dynasty to Goryeo after her mother-in-law, Princess Jeguk.