Zhang Yuzhe, also known as Yu-Che Chang was a Chinese astronomer and director of the Purple Mountain Observatory.
Zhang discovered three comets and is credited under the name Yu Che Chang by the Minor Planet Center for the discovery of one minor planet, the outer main-belt asteroid 3789 Zhongguo.
Born in Minhou, Fujian province in 1902, he graduated from Tsinghua University in 1923 and finished graduate studies at the University of Chicago, receiving his Ph.D. in 1929. Later that year, he returned to China and accepted a teaching post at the National Central University in Nanjing, now known as Nanjing University.
In 1955 he was elected a member, or academician, of the Chinese Academy of Sciences.