The 2010 Illinois Democratic Primary featured contested races for US Senate and Governor. For US Senate, Alexi Giannoulias, David Hoffman, Robert Marshall, Jacob Meister, and Cheryle Jackson were candidates. For Governor, Dan Hynes and Pat Quinn ran. Several other statewide offices such as Lt. Governor, Attorney General, Secretary of State, Comptroller, and Treasurer also had Democratic candidates listed.

1. 2010 Illinois Democratic Primary
US Senate
Alexi Giannoulias
David Hoffman
Robert Marshall
Jacon Meister
Cheryle Jackson
Governor
Dan Hynes
Pat Quinn
Lt. Governor
Ricky Hendon
Terry Link
Arthur L. Turner
Scott Lee Cohen
Thomas Michael Castillo
Mike Boland
Attorney General
Lisa Madigan
Secretary of State
Jesse White
Comptroller
S. Raja Krishnamoorthi
David Miller
Clint Krislov
Treasurer
Justin Oberman
Robin Kelly