Lee Yeon-kyung (; born 15 April 1981) is a South Korean track and field athlete who competes in the 100 metres hurdles.
She established herself at national level with back-to-back wins at the South Korean athletics championship from 1998 to 2001.[1] Her first major international medal came at the 2005 Asian Athletics Championships held in Incheon, where she took the silver medal behind China's Su Yiping.[2] The following year she reached the podium at the 2006 Asian Games, taking home the bronze medal in the women's hurdles.[3] Her time of 13.23 seconds in the final was a new South Korean record for the event.[4] She competed at the 2007 Asian Athletics Championships and won another bronze while Japan's Mami Ishino took the continental title.[5]
Lee improved her national record in 2010, running a time of 13.12 seconds at the Colorful Daegu Pre-Championships Meeting in May.[4] Further progress came at that year's national championships, which she won in a new best of 13 seconds exactly.[6] Her season peaked at the 2010 Asian Games where she pipped Natalya Ivoninskaya, a Kazakh Olympian, to the gold medal in the final and became the first Korean to win the hurdles title at the games.[7]