Aise Johan de Jong (born 30 January 1966)[1] is a Dutch mathematician and professor of mathematics at Columbia University.

[1] He obtained his master's degree at Leiden University in 1987, under the supervision of Antonius Van de Ven.

[1] He earned his Ph.D. cum laude at the Radboud University Nijmegen in 1992, under the supervision of Frans Oort and Joseph H. M.

[1][2] De Jong spent 1 year as a visitor at the Max Planck Institute for Mathematics, 3 months as a visitor at Bielefeld University, and then 3 years as a fellow at the Royal Netherlands Academy of Arts and Sciences stationed at Utrecht University.

[3] In 1996, de Jong developed his theory of alterations which was used by Fedor Bogomolov and Tony Pantev (1996) and Dan Abramovich and de Jong (1997) to prove resolution of singularities in characteristic 0 and to prove a weaker result for varieties of all dimensions in characteristic p which is strong enough to act as a substitute for resolution for many purposes.