Lee Dong-hwan (Korean: 이동환; born 9 April 1987), also known as D. H. Lee, is a South Korean professional golfer.

Lee has predominantly played on the Japan Golf Tour where he has won twice; the Gateway to The Open Mizuno Open Yomiuri Classic in 2007 and the Toshin Golf Tournament in LakeWood in 2011.

In 2017, Lee claimed his first Web.com Tour win at the United Leasing & Finance Championship.

*Note: The 2007 Gateway to The Open Mizuno Open Yomiuri Classic was shortened to 54 holes due to fog.

Japan Golf Tour playoff record (0–1) CUT = missed the half-way cut Note: Lee never played in the Masters Tournament or the PGA Championship.