Young Barney Aaron (born June 27, 1836 in Aldgate, London, England; died June 4, 1907, in Long Island, New York) was a bare-knuckle boxer.
The son of Hall of Fame boxer Barney Aaron, he emigrated to the United States around 1853, and began boxing in 1856. Aaron first became a U.S. Lightweight Champion in 1857 defeating Jim Moneghan, and retook the title in 1867 against Sam Collyer.
Young Barney Aaron was born on July 27, 1836 probably at Duke's Palace in the Aldgate section of London where his father was known to reside.
Like his father before him, Aaron was a hard-hitting bare-knuckled fighter, but he fought in a new era under different rules than his famous father. The elder Aaron battled under "Broughton's Rules"; Young Barney fought under the Pugilistic Society's "London Prize Ring Rules," which had been developed in 1838. Modified in 1853, only three years before young Barney began his professional career, the Rules stated the ring should be 24 square feet (2.2 m2), surrounded by two ropes. Any knockdown marked the end of the round, and the downed fighter had 8 seconds to "come to scratch" unaided, or the fight was over—under Broughton's Rules, a fighter had 30 seconds to return to the center of the ring, and had the help of his handlers. Therefore, bouts were recorded according to the number of rounds and length of time; 3-minute rounds were not developed until the late-19th century.
On July 9, 1856, on Rikers Island, Aaron fought a man named Johnny Robinson beginning at daybreak. The bout lasted for 80 rounds, 2 hours and 20 minutes, and resulted in Aaron being declared the winner. They had previously met indoors for a seventeen round bout that was declared a draw.
On September 28, 1857, he defeated American Lightweight Champion Johnny Moneghan in Providence, RI over 80 rounds. The fight lasted eighty rounds and took 3 hours and 20 minutes. With the victory he became the first Jewish fighter to win a ring championship in America. After his victory, he was given the title "Star of the West", after his father's ring name, "Star of the East".
After losing the title the following year to Patrick "Scotty" Brannagan around October 18, 1858 on a foul, he entered a seven-year period of inactivity to recover and because there were few boxers who wished to face him in a match.