Arieh Iserles (born 2 September 1947)[citation needed] is a computational mathematician, currently Professor of the Numerical Analysis of Differential Equations at the University of Cambridge and a member of the Department of Applied Mathematics and Theoretical Physics.

He studied at the Hebrew University of Jerusalem and Ben-Gurion University of the Negev and wrote his PhD dissertation on numerical methods for stiff ordinary differential equations.

He has written a textbook, A First Course in the Numerical Analysis of Differential Equations (Cambridge University Press, 2nd ed.

In 1999, he was awarded the Onsager Medal by the Norwegian University of Science and Technology.

[6] In 2012, Iserles was an invited speaker at the 6th European Congress of Mathematics[7] in Kraków.