Vito Anthony Marcantonio (December 10, 1902 – August 9, 1954) was an American lawyer and politician who represented East Harlem in New York City for seven terms in the United States House of Representatives.
For most of his political career, he was a member of the American Labor Party, believing that neither major American political party supported the interests of the working class. For two years prior to his party switching to Labor, he had been a New Deal coalition member of the progressive branch of the Republican Party, like his mentor and ally Fiorello La Guardia. Marcantonio was ideologically a socialist, and a supporter of political causes and positions which he deemed in the interests of the working class, poor, immigrants, labor unions, and civil rights.