Lee In-young (Korean: ???, born 28 June 1964) is a South Korean activist and politician serving as the parliamentary leader of Democratic Party of Korea since 2019.
He has been a Member of the National Assembly for Guro District 1st constituency from 2004 to 2008, and since 2012.
Before entering to politics, he was the 1st President of Association of National University Student Representatives, an anti-establishment student organisation.