Francis Edward Su is an American mathematician. He joined the Harvey Mudd College faculty in 1996, and is currently Benediktsson-Karwa Professor of Mathematics. Su served as president of the Mathematical Association of America from 2015 to 2017 and served as Vice President of the American Mathematical Society from 2020 to 2023. Su has received multiple awards from the MAA, including the Henry L. Alder Award and a Deborah and Franklin Haimo Award for Distinguished College or University Teaching of Mathematics, both for distinguished teaching. He was also a Phi Beta Kappa Visiting Scholar during the 2019–2020 term. He was elected as a Fellow of the American Mathematical Society, in the 2025 class of fellows.