March 31, 2020 19:38 Updated Follow Indiana's first state governor was Jonathan Jennings (1816-1822). More information on him can be found here: http://www.in.gov/governorhistory/2377.htm Related articles Where is my state tax refund? Who was the first Indiana Territorial Governor? What powers does the Governor have? How long does the Governor serve and can he or she serve more than one term?