Jeong Sin-Jo (born: January 6, 1940 in Seoul, Korea) is a former South Korean amateur boxer. Jeong won a Olympic silver medal in the bantamweight class at the 1964 Tokyo Olympic games. Jeong also competed at the 1960 Olympic games for South Korea in the flyweight class.
Olympic games results
1960 (as a flyweight)
- Lost to Sergey Sivko (Soviet Union) 0-5
1964 (as a bantamweight)