Cornelius Lanczos (born 2.02.1893) is a theoretical physicist. He was born in Székesfehérvár (Hungary). He graduated from the University of Budapest (1916), and in 1921 he received the degree of Doctor of Philosophy at the University of Szeged. In 1921-24 he worked at the University of Freiburg, and in 1924—31 at the University of Frankfurt. In 1931—46 he was professor at Purdue University (USA), in 1946-49 he was in Washington and in 1949 — 53 at the National Bureau of Standards in Los Angeles. In 1954—68 he was professor at the Institute for Advanced Studies in Dublin.
His research concerned quantum mechanics, field theory, general relativity, the theory of gravitation and mathematical physics.
A member of the Royal Irish Academy (1957).