Michael J. Madigan (born April 19, 1942) is an American politician. He was the Speaker of the Illinois House of Representatives and Chairman of the Democratic Party of Illinois. A Democrat, he has held the position of Speaker of the House for all but two years since 1983—those two years being a brief interregnum of Republican majority and is the longest serving Speaker. He has been a member of the Illinois House since 1971, and currently represents the 22nd district. He is known for having a rough relationship with former Illinois Governor Rod Blagojevich.
On January 11, 2021, Madigan announced he would be ending his bid to be elected to a nineteenth term as Speaker of the Illinois House of Representatives.