Eladio "Black Bill" Valdés (July 1905 – May 14, 1933) was a Cuban boxer of the 1920s. Small of stature at 5 feet, 3.5 inches and weighing between 109–115 pounds, he was managed by Luis "Pincho" Gutiérrez and trained by Moe Fleischer. He made his first official appearance on September 11, 1920 (at age 15) in a fight in Havana, his native city, where he defeated Diego Blanco in the fourth round.