Gaetano Leonard "Tom" Vincitorio (September 11, 1921 - November 26, 2007) was an American historian, author, and educator who specialized in Modern European History, particularly the British politician Edmund Burke.

Born on September 11, 1921, in Brooklyn, New York, Vincitorio attended St. John's University, where he graduated summa cum laude (B.S., 1942), and was also inducted into the Skull and Circle Honor Society.

He then joined the History faculty at St. John's University in 1948, where he was initially hired to replace the extremely popular Professor George "Doc" Murray, who had unexpectedly died in late 1947.

After editing a volume of essays by St. John's history faculty, Studies in Modern History (St. John's University Press, 1968), Vincitorio was the editor-in-chief of a Festschrift for Hoffman: Crisis in the "Great Republic": Essays Presented to Ross J. S. Hoffman (Fordham University Press, 1969), to which he contributed a chapter on "Edmund Burke and the First Partition of Poland: Britain and the Crisis of 1772 in the 'Great Republic.'"

Vincitorio then worked to continue James Truslow Adams' The March of Democracy: A History of the United States, which had originally been published in 1932-1933.