Antonio Auffinger is a Brazilian mathematician. He works in the area of probability theory and mathematical physics. Auffinger completed his doctorate at the Courant Institute in 2011; his dissertation was supervised by Gerard Ben Arous and was awarded the Francisco Aranda-Ordaz Prize by the Bernoulli Society for Mathematical Statistics and Probability. He was Leonard Eugene Dickson instructor at the University of Chicago before moving in 2014 to Northwestern University, where he is an associate professor of mathematics.