Rene Breitbarth (born 24 April 1966 in Mühlhausen, Bezirk Erfurt, East Germany) was a boxer from East Germany who won a Light Flyweight gold medal at the 1985 European Amateur Championships. In 1986, he won the bantamweight silver medal at the 1986 World Amateur Boxing Championships in Reno. At the 1988 Summer Olympics, he was defeated by Jorge Eliécer Julio of Colombia in the round of 16 of the bantamweight category.