Mark Kisin is a prominent mathematician known for his influential and wide-ranging work in algebraic number theory and arithmetic algebraic geometry. He is widely acknowledged as being one of the top number theorists of his generation.

His most celebrated research is concerned with the fairly young branch of number theory — p-adic Hodge theory — and its applications to the arithmetic of modular forms and modularity of Galois representations. He also developed the technical machinery that underlies many recent advances in modularity.

Mark is celebrated for the quality of his research, teaching and mentorship. He also offers his services to the wider mathematics community — as the organiser of a number of research conferences and as an editor of three mathematical journals. In 2010, Mark gave an invited talk on number theory at the International Congress of Mathematicians. He became a Fellow of the American Mathematical Society in 2012.