Dan Laksov (10 July 1940 – 25 October 2013) was a Norwegian-Swedish mathematician and human rights activist. He graduated in mathematics from the University of Bergen and took the doctorate at the Massachusetts Institute of Technology. He was a professor of mathematics at the Royal Institute of Technology in Sweden. He also served as a director of the Mittag-Leffler Institute and editor of the institute's journal Acta Mathematica. His main contributions were in algebra, algebraic geometry and Schubert calculus. He was a fellow of the Norwegian Academy of Science and Letters. In 2008 he received an honorary degree at the University of Bergen.