Name | Date | Location | War | Campaign | Dead | Belligerents |
Fort Sandusky |
May 16, 1763 |
disputed[1] |
Pontiac's Rebellion |
|
15+[2] |
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[3] vs. United States of America[4] |
Battle of Chillicothe |
May 1779 |
present-day Xenia Township, Greene County, Ohio |
American Revolutionary War |
Western theater |
unknown[5] |
Kentucky militia vs Shawnee |
Battle of Piqua |
August 8, 1780 |
Bethel Township, Clark County, Ohio |
American Revolutionary War |
Western theater |
50+ Killed 43+ wounded |
United States of America vs. Shawnee and allies |
Gnadenhutten massacre |
March 8, 1782 |
Gnadenhutten, Ohio |
American Revolutionary War |
Western theater |
96[6] |
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[7] 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[8] |
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[9] |
Western Confederacy vs United States of America |
Battle of Marblehead Peninsula[10] |
September 29, 1812 |
modern Marblehead, Ohio |
War of 1812[11] |
|
48 |
Tecumseh's confederacy vs United States citizens |
Siege of Fort Meigs[12] |
April 28 - May 9, 1813 |
modern Perrysburg, Ohio |
War of 1812 |
|
174+[13] |
United Kingdom & Native Americans vs United States of America |
Battle of Fort Stephenson[14] |
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[15] |
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[16] |
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[17] |
March 28–30, 1884 |
Cincinnati, Ohio |
|
Protest of a jury case |
56 |
Citizen mob vs Cincinnati Police, 1st Ohio Militia, Dayton militia & Columbus militia |