Hoja Niyaz Haji also Xoja Niyaz Haji (Uyghur: خوجا نىياز ھاجى‎, ULY: Xoja Niyaz Haji, خوجا نياز حاجی, Chinese: 和加·尼牙孜·阿吉; pinyin: Héjiā Níyázī Ājí) (1889 – 1941) was a Uyghur independence movement leader who led several rebellions in Xinjiang against the Kumul Khanate, the Chinese governor Jin Shuren, and later the Hui warlord Ma Chung-ying. He is best remembered as the first and only president of the short-lived Turkish Islamic Republic of Eastern Turkestan (or First East Turkestan Republic) from early 1933 until the republic's defeat in 1934.