Oscar Chaplin III (February 22, 1980 – February 4, 2022) was an American Olympic weightlifter. Chaplin III represented United States in weightlifting in the 1990s and 2000s. He competed at 77 and 85 kilograms. He won the 2000 Junior World Championships at 77 kilograms with a 155-kilogram snatch and 187.5-kilogram clean & jerk for a total of 342.5 kilograms. Chaplin was the only American man to win a world-level event for 16 years (Clarence "CJ" Cummings won 2016 Junior Worlds). He died in Savannah, Georgia on February 4, 2022, at the age of 41.