Lee Eun-jung (born April 21, 1981) is a South Korean female long-distance runner. She is best known for winning the half marathon at the 2005 Summer Universiade.

She won the 2007 edition of the JoongAng Seoul Marathon and has represented her country twice at Olympic level, running at the 2004 Athens Olympics and the 2008 Beijing Games.

Year	Competition	Venue	Position	Event	Notes
Representing  South Korea
2004	Olympic Games	Athens, Greece	19th	Marathon	2:37:23
2005	Universiade	İzmir, Turkey	1st	Half marathon	1:14:31
	Asian Championships	Incheon, South Korea	2nd	5000 m	15:41.67
2008	Olympic Games	Beijing, China	25th	Marathon	2:33:07

• 3000 metres - 9:43.12 min (2007)
• 5000 metres - 15:41.67 min (2005)
• 10,000 metres - 32:43.35 min (2005)
• Half marathon - 1:11:15 hrs (2005)
• Marathon - 2:26:17 hrs (2004)

• Lee Eun-jung at World Athletics