Miklós (Hungarian) or Nicolae (Romanian) Kallós was born to a religious Jewish family in Oradea on 11 November 1926. His father was employed by the Jewish community.
At the beginning of April 1944, Kallós and his entire family were committed to the Oradea Ghetto, and at the end of May he was deported to Auschwitz with his father. In early June he was transferred to the
After liberation, Kallós was initially taken to the Blankenhain hospital to be treated for tuberculosis. Then he returned to Cluj-Napoca and studied psychology and philosophy. In 1948 he became a lecturer on Marxist philosophy and later of sociology and political science. As a tenured professor he served as associate dean and later as dean of the philosophy faculty of the University of Cluj-Napoca; he also edited a number of cultural and scientific journals and was a member of the Academy of Political and Social Sciences. Many of his writings were published. Following his retirement he continued to supervise dissertations. Miklós Kallós is the chairman of the Jewish Community in Cluj-Napoca, vice-chairman of "Memento", the association of survivors of Buchenwald Concentration Camp in Romania, and editor in chief of the association’s bulletin.
