Sin Kyung-hyen (born 12 December 1977) is a South Korean taekwondo practitioner.

She won a gold medal in heavyweight at the 2001 World Taekwondo Championships, defeating Wang I-hsien in the final.

She won another gold medal at the 2005 World Taekwondo Championships in Madrid.

She won a silver medal at the 2000 Asian Taekwondo Championships.

This biographical article related to South Korean taekwondo is a stub.