David Gill (born December 25, 1959) is an American physician and politician from Illinois. A Democrat, Gill ran in 2004 for the U.S. House of Representatives against incumbant Timothy V. Johnson for Illinois's 15th Congressional District and garnered 39% of the vote. He ran against Congressman Johnson again in 2006, winning 42% of the vote.
Gill attended both undergraduate and medical school at the University of Illinois at Urbana-Champaign and has been practicing medicine for the past 20 years. He works as a physician and the medical director of the emergency room at John Warner Hospital in Clinton, Illinois. He volunteers as a substitute teacher, at Planned Parenthood of East Central Illinois, and as a youth sports coach in Clinton. Gill also runs a men's social club at the DeWitt County Nursing Home.
David Gill has been married to his wife, Polly Wright-Gill, for 18 years. They have three children.