January 16, 2018 03:48 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 Who was the first Indiana Territorial Governor? What powers does the Governor have? When is the State's Annual Dr. King Program? What are the duties of the Governor? Can I take the renter's deduction and also the homeowner's property tax deduction?