Félix Pollaczek (1 December 1892 in Vienna – 29 April 1981 at Boulogne-Billancourt) was an Austrian-French[2] engineer and mathematician, known for numerous contributions to number theory, mathematical analysis, mathematical physics and probability theory.

in electrical engineering from Technical University of Brno (1920), and his Ph.D. in mathematics from University of Berlin (1922) with a dissertation titled Über die Kreiskörper der l-ten und l2-ten Einheitswurzeln, advised by Issai Schur and based on results published first in 1917.

[2] He moved to Paris, where he was consulting teletraffic engineer to various institutions from 1933 onwards, including the Société d'Études pour Liaisons Téléphoniques et Télégraphiques (SELT) and the French National Centre for Scientific Research (CNRS).

He was posthumously elected to the 2002 class of Fellows of the Institute for Operations Research and the Management Sciences.

Pollaczek became physicist László Tisza's father-in-law due to Magda's marriage.