Ken Lucas (born August 22, 1933), is an American politician. Lucas, a Democrat, was a U.S. Representative from Kentucky's fourth congressional district from 1999 until 2005.
He did not run for reelection in 2004, honoring a promise to serve only three terms. However, he intends to make a bid for his old congressional seat in 2006 against Geoff Davis, the Republican who won the seat in 2004. Lucas narrowly defeated Davis in 2002, even as popular Republican Senator Mitch McConnell breezed to a fourth term in a big midterm cycle for Republicans.