Nikolai Vasilievich Ardelyan (; born 18 September 1953) is a Russian mathematician, Professor, Dr.Sc., Honored Scientist of the Moscow State University, Leading Researcher of the MSU Faculty of Computational Mathematics and Cybernetics.
He defended the thesis ëDifference-Operational Diagrams of the Dynamics of a Magnetic Gasû by the degree of Doctor of Physical and Mathematical Sciences (1992).
Author of 4 books and more than 160 scientific articles.
Honored Research Fellow of Moscow State University (2003).