Yi-Fang Tsay

 Yi-Fang Tsay is a Taiwanese botanist. She is a distinguished research fellow at the Institute of Molecular Biology, Academia Sinica.

Education
For high school she attended Taipei First Girls' High School. She received her bachelor's and master's degree from Department of Botany, National Taiwan University. In 1990 she completed her PhD in biological sciences at Carnegie Mellon University.

Research
She is a distinguished research fellow at the Institute of Molecular Biology, Academia Sinica. She is best known for her work on nitrate transport, signaling and utilization efficiency in plants.

Awards and recognitions
She is a recipient of the Taiwan Outstanding Women in Science Award.

In 2021 she was elected to the American National Academy of Sciences.