Mark Curran

Mark Curran
Sheriff of Lake County
In office
December 2006  December 2018
Preceded byGary Del Re
Succeeded byJohn Idleburg
Personal details
Born (1963-04-04) April 4, 1963
Pittsburgh, Pennsylvania, U.S.
Political partyDemocratic (before 2008)
Republican (2008–present)
EducationSpring Hill College (BA)
Illinois Institute of Technology (JD)

Mark C. Curran Jr. (born April 4, 1963) is an American attorney who served as Sheriff of Lake County, Illinois from 2006 to 2018. He was the Republican nominee in the 2020 United States Senate election in Illinois, losing to incumbent Democratic Party incumbent Dick Durbin. In 2022, he ran as the Republican nominee for the 2nd district seat on the Illinois Supreme Court, losing to Democratic Party nominee Elizabeth Rochford.