Jennifer Lee Brunner (born February 5, 1957) is an American attorney, politician and judge. She is currently an associate justice of the Ohio Supreme Court, a position to which she was elected after serving as a judge on Ohio's Tenth District Court of Appeals. On June 8, 2021, Brunner announced her candidacy for Chief Justice of the Ohio Supreme Court in the November 8, 2022, general election. Brunner is a member of the Democratic Party who served as the Ohio Secretary of State; Brunner was the first woman to serve in this capacity. She took office after sixteen years of Republican control, which included two four-year terms by her predecessor J. Kenneth Blackwell, who oversaw the 2000 and 2004 United States elections. Brunner served only a single term as Secretary of State. When it came time for re-election in 2010, she instead made an unsuccessful bid for the U.S. Senate. Prior to being elected Secretary of State, Brunner worked in the Ohio Secretary of State's Office and served as a County Judge in Franklin County, Ohio. She also owned her own private practice; during her private practice career, she focused on election law and campaign finance law. She represented a broad range of candidates, businesses, political parties and committees before the Ohio Elections Commission on quasi-criminal matters.