Lee Min-woo (Hangul: 이민우; hanja: 李玟雨; born 28 July 1979), mononymously credited as M as a solo artist, is a South Korean entertainer, known as a member of six-member boy band Shinhwa. As part of Shinhwa, he has recorded ten studio albums as a vocalist and a rapper. Lee was the first Shinhwa member to debut as a solo artist in 2003, and has since released three studio albums.

In 2007, Lee set up his own agency, M Rising Entertainment, to manage his solo activities. Whilst he continued to perform as part of Shinhwa under Good Entertainment, until July 2010 where he became co-CEO with Eric Mun for Shinhwa activities. As of November 2012, he has signed with Liveworks Company.