Dianne H. Hesselbein (née Conway; born March 10, 1971) is an American Democratic politician from Middleton, Wisconsin.

She graduated from La Follette High School in 1989 and went on to attend the University of Wisconsin–Oshkosh, where she earned her bachelor's degree in 1993.

[1][2] She subsequently moved to Middleton, Wisconsin, just west of Madison, where she was elected to the Dane County board of supervisors.

[5] In December 2021, long-time incumbent state senator Jon Erpenbach announced he would not run for a seventh term in 2022.

[7] She faced no opposition in the Democratic primary, and went on to defeat Republican candidate Robert Relph with 68% of the vote in the November general election.