List of Indiana state historical markers in Ohio County

This is a list of the Indiana state historical markers in Ohio County.

This is intended to be a detailed table of the official state historical marker placed in Ohio County, Indiana, United States by the Indiana Historical Bureau. The location of the historical marker and its latitude and longitude coordinates are included below when available, along with its name, year of placement, and topics as recorded by the Historical Bureau. There are 3 historical markers located in Ohio County.