Tatiana Toro (born 1964) is a Colombian-American mathematician at the University of Washington.^[1] Her research is "at the interface of geometric measure theory, harmonic analysis and partial differential equations".^[2] Toro was appointed director of the Simons Laufer Mathematical Sciences Institute for 2022–2027.^[3]

Toro was born in 1964 in Colombia,^[2][4] and attended the Lycée Français Louis Pasteur in Bogotá.^[5] She competed for Colombia in the 1981 International Mathematical Olympiad,^[6] and earned a bachelor's degree from the National University of Colombia.^[7] In 1992, she was awarded her PhD at Stanford University, under the supervision of Leon Simon.^[8] After short-term positions at the Institute for Advanced Study, University of California, Berkeley, and University of Chicago, she joined the University of Washington faculty in 1996.^[1] Since August 2022, Toro serves as the director of Simons Laufer Mathematical Sciences Institute (formerly MSRI).^[4] She will maintain her tenure at the University of Washington throughout her term.^[9]

Toro was an invited speaker at the International Congress of Mathematicians in 2010.^[10] She became a Guggenheim Fellow in 2015.^[2] She was elected as a member of the 2017 class of Fellows of the American Mathematical Society "for contributions to geometric measure theory, potential theory, and free boundary theory".^[11] At the University of Washington, she was the Robert R. & Elaine F. Phelps Professor in Mathematics from 2012 to 2016^[12] and is currently the Craig McKibben and Sarah Merner Professor. Toro was named MSRI Chancellor's Professor for 2016–17.^[13] She was awarded the 2020 Blackwell-Tapia Prize.^[14] She was elected fellow of the American Academy of Arts and Sciences (AAAS) in 2020.^[15] Toro was honored as the AWM/MAA Falconer Lecturer in 2023.^[16]