Frances Foong Chu Yao (Chinese: 储枫; pinyin: Chǔ Fēng) is a Chinese-born American mathematician and theoretical computer scientist. She is currently a Chair Professor at the Institute for Interdisciplinary Information Sciences (IIIS) of Tsinghua University. She was Chair Professor and Head of the Department of computer science at the City University of Hong Kong, where she is now an honorary professor.