Jill Coit (born June 11, 1943 or 1944) is an American convicted murderer.
A con artist and serial bigamist who has been married 11 times to nine different men, Coit was convicted of killing her eighth husband in 1993 and is also suspected of killing her third husband in 1972.
Coit is serving a life sentence with no possibility of parole at the Denver Women's Correctional Facility.