| Jon Sesso | |
| Office: | Minority Leader of the Montana Senate |
| Term Start: | January 5, 2013 |
| Term End: | January 4, 2021 |
| Predecessor: | Carol Williams |
| Successor: | Jill Cohenour |
| State Senate1: | Montana |
| District1: | 37th |
| Term Start1: | January 2013 |
| Term End1: | January 4, 2021 |
| Predecessor1: | Steve Gallus |
| Successor1: | Ryan Lynch |
| Office2: | Minority Leader of the Montana House of Representatives |
| Term Start2: | January 2009 |
| Term End2: | January 2013 |
| Predecessor2: | Chuck Hunter |
| Successor2: | ??? |
| State House3: | Montana |
| District3: | 76th |
| Term Start3: | 2004 |
| Term End3: | 2013 |
| Predecessor3: | ??? |
| Birth Date: | 15 November 1953 |
| Birth Place: | Racine, Wisconsin, U.S. |
| Party: | Democratic |
| Spouse: | Barbara Kornet |
Jon C. Sesso (born November 15, 1953) is an American politician of the Democratic Party. He was the Minority Leader of the Montana Senate, representing District 37 from 2013 to 2018.[1] He was previously a member of the Montana House of Representatives, representing District 76, from 2004 to 2013.
Jon Sesso was born on November 15, 1953, in Racine, Wisconsin.[2] In 1971, Sesso attended the University of Wisconsin Madison and obtained a bachelor's degree in Communications and a master's degree in Communications and Environmental Studies.
Since 1991, Sesso has been the Director of the Planning Department in the county of Silver Bow. He is heavily involved with Superfund activities, particularly in regards to the Berkeley Pit.
In 2004, Jon Sesso was elected to the Montana House of Representatives for the state's 76th District.[3] Sesso served on the House Appropriations Committee during his tenure. During the 2011-2012 legislative session, Sesso served as the Minority Leader of the Montana House of Representatives for the Democratic Party.
Sesso was elected to the Montana Senate in 2013 and succeeded Carol Williams as the Minority Leader of the Senate.[4]