Atlas of Battles

battle, notable, early modern

Battle of the Monongahela

Battle of the Monongahela was a battle fought on 9 July 1755 at Fort Duquesne, in what is now Pennsylvania, United States. It was part of the Seven Years' War, which ran from 1756 to 1763. The recorded result: French-Indian victory.

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Major-General Braddock's death at the Battle of the Monongahela, 9 July 1755. Engraving from L'histoire de France depuis 1789 jusqu'en 1848 racontée à mes petits-enfants.
Major-General Braddock's death at the Battle of the Monongahela, 9 July 1755. Engraving from L'histoire de France depuis 1789 jusqu'en 1848 racontée à mes petits-enfants.. Unknown authorUnknown author, Public domain, via Wikimedia Commons.
Fought9 July 1755
WhereFort Duquesne, Pennsylvania, United States40.442N, 80.011W
OutcomeFrench-Indian victory
BelligerentsKingdom of France; New France; Odawas; Abenaki; Lenni Lenape; Hurons; Potawatomis; OjibweagainstKingdom of Great Britain; British America
Casualties and losses39 killed; 57 woundedand457 killed; 450+ wounded
Part ofSeven Years' War1756 to 1763

Where it sits in the Seven Years' War

Battle of Fort Beauséjour, 1755Battle of the Monongahela, 1755Battle of Petitcodiac, 1755Battle of Lake George, 1755Battle of Fort Bull, 1756Siege of Fort St Philip, 1756Battle of Minorca, 1756Battle of Fort Oswego, 1756Siege of Pirna, 1756Battle of Lobositz, 1756Siege of Schweidnitz, 1757Battle of Chandannagar, 1757Battle of Reichenberg, 1757Battle of Prague, 1757Battle of Kolín, 1757Battle of Studencem, 1757Battle of Hastenbeck, 1757Siege of Fort William Henry, 1757Battle of Gross-Jägersdorf, 1757Raid on Rochefort, 1757Battle of Moys, 1757Battle of Cap-Français, 1757Battle of Rossbach, 1757Battle of Breslau, 1757Battle of Leuthen, 1757Siege of Olomouc, 1758Capture of Senegal, 1758Siege of Küstrin, 1758Siege of Neisse, 1758Siege of Schweidnitz, 1758Battle of Cartagena, 1758Siege of Minden, 1758Battle of Cuddalore, 1758Action of 29 April 1758, 1758Raid on St Malo, 1758Battle of Rheinberg, 1758Battle of Krefeld, 1758Battle of Domstadtl, 1758Battle of Carillon, 1758Battle of Ostřetína, 1758Battle of Přepych, 1758Battle of Negapatam, 1758Battle of Mehr, 1758Raid on Cherbourg, 1758Battle of Zorndorf, 1758Battle of Fort Frontenac, 1758Battle of Saint Cast, 1758Battle of Fort Duquesne, 1758Battle of Tornow, 1758Siege of Kolberg, 1758Battle of Lutterberg, 1758Battle of Fort Ligonier, 1758Battle of Hochkirch, 1758Siege of Madras, 1758Capture of Gorée, 1758Battle of Condore, 1758Sieges of Kolberg, 1759Battle of Fulda, 1759Invasion of Martinique, 1759Invasion of Guadeloupe, 1759Siege of Masulipatam, 1759Battle of Bergen, 1759Battle of Peterswalde, 1759Battle of Himmelreich, 1759Siege of Quebec, 1759Raid on Le Havre, 1759Battle of Kay, 1759Battle of Ticonderoga, 1759Battle of Beauport, 1759Battle of Minden, 1759Battle of Kunersdorf, 1759Battle of Lagos, 1759Battle of Pondicherry, 1759Battle of Frisches Haff, 1759Battle of the Plains of Abraham, 1759Battle of Hoyerswerda, 1759Siege of Münster, 1759Battle of Quiberon Bay, 1759Battle of Maxen, 1759Battle of Chinsurah, 1759Battle of Meissen, 1759Battle of Wandiwash, 1760Battle of Udgir, 1760Battle of Carrickfergus, 1760Battle of Sainte-Foy, 1760Battle of Neuville, 1760Siege of Glatz, 1760Battle of Landeshut, 1760Battle of Restigouche, 1760Battle of Corbach, 1760Siege of Dresden, 1760Battle of Emsdorf, 1760Battle of Warburg, 1760Battle of Liegnitz, 1760Battle of Oschatz, 1760Battle of the Thousand Islands, 1760Siege of Kolberg, 1760Siege of Pondicherry, 1760Battle of Rhadern, 1760Raid on Berlin, 1760Battle of Kloster Kampen, 1760Battle of the Windward Passage, 1760Battle of Langensalza, 1761Siege of Cassel, 1761Battle of Grünberg, 1761Capture of Belle Île, 1761Battle of Villinghausen, 1761Action of 17 July 1761, 1761Battle of Cape Finisterre, 1761Siege of Kolberg, 1761Battle of Ölper, 1761Invasion of Martinique, 1762Bombardment of Arnsberg, 1762Battle of Wilhelmsthal, 1762Battle of Burkersdorf, 1762Battle of Lutterberg, 1762Siege of Almeida, 1762Battle of Grüningen, 1762Battle of Valencia de Alcántara, 1762Battle of Nauheim, 1762Battle of Signal Hill, 1762Battle of Brücker Mill, 1762Siege of Cassel, 1762Battle of Vila Velha, 1762Battle of Freiberg, 1762Siege of Fort Detroit, 1763Battle of Devil's Hole, 176317551763Battle of the Monongahela, 1755
127 placed engagements of the Seven Years' War in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date9 July 1755
PlaceFort Duquesne, Pennsylvania, United States
40.442N, 80.011W
KindBattle, early modern
Strength637 Indian Warriors (the Odawa, Ojibwe and Potawatomis); 108 troupes de la Marine; 146 militia; Total: 8911,300 regulars and provincial troops.
Casualties and losses39 killed; 57 wounded457 killed; 450+ wounded
Commanders
Battle of the MonongahelaBattle of the MonongahelaBattle of Fort DuquesneSiege of Fort PittBattle of Bushy RunBattle of Fort LigonierSiege of Fort HenrySiege of Fort HenryClevelandYoungstownCantonAkronMorgantownCumberlandBeaver FallsAltoona100 km40.442N, 80.011W
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Contested ground: this site was fought over 3 times between 1755 and 1763.

In the same war

Elsewhere in 1755

Battle of the Monongahela is one of 2,009 engagements of the 18th century in the atlas and one of 1,148 in present-day United States (31 in Pennsylvania).

Sources

Identity, coordinates, dates and the war from Wikidata Q524828, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of the Monongahela, revision 1375669080, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.