David Z.T. Yui (Chinese: 余日章; pinyin: Yú Rìzhāng; Wade–Giles: Yü Jih-chang; 25 November 1882 Wuhan - 22 January 1936) was a Chinese Protestant Christian leader who led the Chinese National YMCA. in the 1920s and 1930s. Yui was a leader in what the historian Daniel Bays called the "Sino-Foreign Protestant Establishment", a generation of Chinese Protestant Christians who worked to make Christianity independent of foreign control and relevant to the emerging Chinese nation.