Yulbars Khan (Uyghur: يۇلبارس خان‎ Uyghur: يۇلۋاس خان‎ (يولبارس خان) 'Tiger'; Chinese: 堯樂博斯; pinyin: Yáolèbósī or Chinese: 堯樂博士; pinyin: Yáolèbóshì; 1888-1971), courtesy name Jingfu (景福), was a Uighur warlord and Kuomintang general during the Chinese Civil War. He entered the service in the Kumul Khanate of Muhammad Khan of Kumul and later his son Maksud Shah.[4][5] He served as an advisor at the court, until when Maksud died in March 1930, governor Jin Shuren abolished the khanate.[6] Yulbars then conspired with Khoja Niyaz and Ma Zhongying to overthrow Jin in the Kumul Rebellion.[7][8][9] According to some people, Ma restrained Yulbars from traveling to Nanking to ask the Kuomintang for help, Ma earlier had an agreement with the Kuomintang that if he seized Xinjiang, he would be recognized by the Kuomintang as its leader.