March 08, 2022 01:42 Updated Follow The first governor of the Indiana Territory was William Henry Harrison (1800-1812). More information on him can be found here: http://www.in.gov/governorhistory/2380.htm Related articles Who was Indiana's first State Governor What powers does the Governor have? What is the Governor's annual salary? How do I get a copy of my original birth certificate? Where can I get a copy of an Indiana birth or death certificate?