Samuel Berger (December 25, 1884 – February 23, 1925) was an Americanprofessionalheavyweightboxer who competed in the early twentieth century. Berger joined the Olympic Club in San Francisco when he was 16 years old. In 1901 he won the amateur middleweight championship of the Pacific Coast. In 1902 he won the amateur heavyweight championship. Berger had 40 amateur fights, most of which were won by knockout. Berger had a few professional fights, with some success. He sparred with Bob Fitzsimmons on one of the latter's tours, and managed Jim Jeffries for his fight in Reno, Nevada against Jack Johnson. Berger was also a member of the South End Rowing Club in San Francisco.