Rocco Francis Marchegiano, better known as Rocky Marciano (September 1, 1923 – August 31, 1969), was an Italian-American boxer.

He was the World Heavyweight Boxing Champion from September 23, 1952 to November 30, 1956. Marciano is one of only two world champion boxers in the history of boxing to retire with a perfect winning record. He is considered one of the greatest heavyweights of all time.

Rocky had a professional record of 49-0 with forty-three knockouts. Some say that he was 50-0 (with forty-four knockouts), but that bout can not be proven as a professional, yet. He was originally scheduled to fight Nino Valdez or Bob Baker in his last fight on January 2, 1956 (or at a later date in Cuba, June 1956), but that fight, originally planned for Miami Beach, Florida, never took place. There was some talk about Floyd Patterson fighting Rocky on January 4/11th 1956, Floyd's 21st birthday, but again, no interest since Floyd was not a contender for a heavy-weight title. Other possible contenders near the end of Marciano's career were Tommy Hurricane Jackson, Bob Baker and Floyd Patterson; however, Patterson was not yet ready to take on Marciano and wanted to fight for light-heavyweight championship first for about one to two more years.

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