| class="wikitable sortable"
!Name!!Date!!Location!!War!!Campaign!!Dead!!Belligerents |
| Fort Sandusky
|May 16, 1763
|disputed[The exact location of the fort is variously given as somewhere in modern Ottawa County, Sandusky County, and Erie County. The Ohio Historical Society and the Erie County Historical Society erected a [http://www.hmdb.org/marker.asp?marker=20435 memorial marker] at Sandusky in 1979.]
|Pontiac's Rebellion
|
|15+[The garrison consisted of 15 soldiers and their commander. Several British traders were present and killed at the fort during the raid.]
|Wyandot vs Kingdom of Great Britain |
| Siege of Fort Laurens
|February 22 - March 20, 1779
|near modern Bolivar, Ohio
|American Revolutionary War
|Western theater
|17+
|Kingdom of Great Britain & Native allies[Specifically, Wyandot, Mingo, Munsee & Delaware] vs. United States of America[Specifically, 150 men from the 8th Pennsylvania Regiment and the 13th Virginia Regiment.] |
| Battle of Chillicothe
|May 1779
|present-day Xenia Township, Greene County, Ohio
|American Revolutionary War
|Western theater
|unknown[Various sources record 8-10 casualties among the militia, but do not state whether these were killed, wounded, or both; additionally, Shawnee casualties are unknown.]
|Kentucky militia vs Shawnee |
| Gnadenhutten massacre
|March 8, 1782
|Gnadenhutten, Ohio
|American Revolutionary War
|Western theater
|96[28 men, 29 women, and 39 children.]
|Pennsylvania militia vs Christian Lenape |
| Logan's Raid
|October 1786
|near modern Springfield, Ohio
|Northwest Indian War
|
|11
|Shawnee vs Kentucky militia |
| Big Bottom massacre
|January 2, 1791
|near modern Stockport, Ohio
|Northwest Indian War
|
|12
|Lenape & Wyandot vs Ohio settlers |
| Siege of Dunlap's Station
|January 8–11, 1791
|near modern Dunlap, Ohio
|Northwest Indian War
|
|2
|Native Americans[Led by Simon Girty.] vs Ohio settlers |
| St. Clair's Defeat
|November 4, 1791
|near modern Fort Recovery, Ohio
|Northwest Indian War
|
|893+
|Western Confederacy vs United States of America |
Attack on Fort St. Clair[{{Cite web |url=http://www.remarkableohio.org/HistoricalMarker.aspx?historicalMarkerId=542 |title=Site of Fort St. Clair |access-date=2014-05-20 |archive-url=https://web.archive.org/web/20140521031655/http://www.remarkableohio.org/HistoricalMarker.aspx?historicalMarkerId=542 |archive-date=2014-05-21 |url-status=dead }}]
|November 9, 1792
|modern Preble County
|Northwest Indian War
|
|10+
|Miami vs Kentucky militia
| |
| Siege of Fort Recovery
|June 30-July 1, 1794
|modern Fort Recovery, Ohio
|Northwest Indian War
|
|43+
|Western Confederacy vs United States of America |
| Battle of Fallen Timbers
|August 20, 1794
|near modern Maumee, Ohio
|Northwest Indian War
|
|77[Native American losses are given from 19 up to 40.]
|Western Confederacy vs United States of America |
Battle of Marblehead Peninsula[{{cite web|url=http://www.hmdb.org/marker.asp?marker=35956|title=First Battle Site 1812 Ohio Historical Marker|accessdate=2012-01-25|publisher=The Historical Marker Database}}{{cite web|url=http://www.thekeepershouse.org/|title=A very brief history of the Keeper's House|accessdate=2012-01-25|publisher=Ottawa County Historical Society}}]
|September 29, 1812
|modern Marblehead, Ohio
|War of 1812[The Battle of Marblehead Peninsula (more accurately referred to as a skirmish), is often cited as the first conflict on land in the War of 1812. However, this is incorrect.]
|
|48
|Tecumseh's confederacy vs United States citizens |
Siege of Fort Meigs[{{cite web|url=http://www.fortmeigs.org/history/|title=Fort Meigs History|accessdate=2012-01-25|publisher=Fort Meigs Historic Site}}]
|April 28 - May 9, 1813
|modern Perrysburg, Ohio
|War of 1812
|
|174+[This figure does not include Indian numbers, which are recorded as 19 killed and wounded.]
|United Kingdom & Native Americans vs United States of America |
Battle of Fort Stephenson[{{cite web|url=http://www.sandusky-county-scrapbook.net/FtStephenson.htm |title=The Battle of Fort Stephenson |accessdate=2012-01-25 |publisher=Sandusky County Scrapbook |url-status=dead |archiveurl=https://web.archive.org/web/20120204064746/http://www.sandusky-county-scrapbook.net/FtStephenson.htm |archivedate=2012-02-04 }}]
|August 2, 1813
|modern Sandusky County, Ohio
|War of 1812
|
|27
|United Kingdom & Tecumseh's confederacy vs United States of America |
| Battle of Put-in-Bay
|September 10, 1813
|Lake Erie near modern Put-in-Bay, Ohio
|War of 1812
|
|68
|United Kingdom vs United States of America |
Battle of Buffington Island[{{cite web|url=http://www.nps.gov/hps/abpp/battles/oh001.htm|title=CWSAC Battle Summary: Buffington Island|accessdate=2012-01-25|publisher=National Park Service}}]
|July 19, 1863
|Portland, Ohio / Buffington Island
|American Civil War
|Morgan's Raid (1863)
|77
|United States of America vs Confederate States of America |
Battle of Salineville[{{cite web|url=http://www.nps.gov/hps/abpp/battles/oh002.htm|title=CWSAC Battle Summary: Salineville|accessdate=2012-01-25|publisher=National Park Service}}]
|July 26, 1863
|near Salineville, Ohio
|American Civil War
|Morgan's Raid (1863)
|
|United States of America vs Confederate States of America |
Cincinnati Courthouse riots[{{cite web|url=http://www.ohiohistorycentral.org/w/Cincinnati_Courthouse_Riot?rec=488|title=Cincinnati Courthouse Riot|accessdate=2017-03-27|publisher=Ohio History Central}}]
|March 28–30, 1884
|Cincinnati, Ohio
|
|Protest of a jury case
|56
|Citizen mob vs Cincinnati Police, 1st Ohio Militia, Dayton militia & Columbus militia |
