Lee Jeong-eun (Korean: 이정은; Hanja: 李政恩; born 20 October 1988) is a South Korean professional golfer.

For scoring purposes, she is called Jeongeun Lee5 to differentiate herself from other Korean LPGA golfers with that name, including the younger Jeongeun Lee6.

Lee played on the LPGA of Korea Tour where she won five times between 2009 and 2015.

[1] Events in bold are KLPGA majors.

This biographical article relating to golf in South Korea is a stub.