Amy Ong Tsui (born 1949) is an American demographer.

Due to the Chinese Civil War, Tsui's father emigrated to the United States to pursue doctoral studies in agricultural economics. Tsui was born in Pullman, Washington in 1949. The elder Tsui worked for the Food and Agriculture Organization, and moved his family to Bangladesh and Thailand. The Tsui family later returned to the United States, where Amy graduated from high school, and enrolled at Carlton College in Minnesota, before transferring to the University of Hawaiʻi at Mānoa, where she completed her bachelor's and master's degrees in 1970 and 1972, respectively. Five years later, Tsui obtained a doctorate from the University of Chicago, where she was advised by Donald Bogue.^[1][2][3]

Tsui remained on the University of Chicago faculty until 1982, when she moved to the University of North Carolina at Chapel Hill. In 2002, she joined the Johns Hopkins University faculty.^[4][1] While affiliated with Johns Hopkins, Tsui was elected a fellow of the American Association for the Advancement of Science in 2004,^[5][6] and served as president of the Population Association of America in 2017.^[7]