Kim beat Hungary's Tamas Lorincz in two rounds without dropping a point.
To huge cheers in a packed wrestling arena, Kim bowed down in the middle of the mat and kissed his country's flag.
The South Korean, who fought the final with a badly swollen right eye, narrowly beat the 2008 Olympic champion Steeve Guenot of France in the semi-finals.
![](https://i.ytimg.com/vi/xE-6tY5Xy0s/maxresdefault.jpg)