Thomas E. Kluczynski (September 29, 1903 – May 16, 1994) was an American jurist.
Born in Chicago, Illinois, Kluczynski received his LL.B. degree from the University of Chicago Law School in 1927. He then practiced law until 1945, when he was appointed a commissioner of the Illinois Industrial Commission. In 1950, Governor Adlai Stevenson appointed Klucyznski to circuit court. In 1962, Kluczynski was appointed to the Illinois Appellate Court. From 1966 to 1976 and from 1978 to 1980, Kluczynski served on the Supreme Court of Illinois. Kluczynski died in Chicago, Illinois.