Emile Alphonse Griffith was a professional boxer from the U.S. Virgin Islands who won world titles in three weight divisions. He held the world light middleweight, undisputed welterweight, and middleweight titles. His best-known contest was a 1962 title match with Benny Paret. Griffith won the bout by knockout; Paret never recovered consciousness and died in the hospital 10 days later.

In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all recognized major organisations by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, IBF and WBO. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have only been 19 boxers to hold all four titles simultaneously.