Atlas of Battles

battle, notable, ancient

Battle of Orchomenus

Battle of Orchomenus was a battle fought in 86 BC at Orchomenus, in what is now Greece. It was part of First Mithridatic War, which ran from 89 BC to 85 BC. The recorded result: Roman victory. Recorded strength: 30,000 against 75,000–80,000.

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Battle of Orchomenos (86 BC)
Battle of Orchomenos (86 BC). Cristiano64, CC BY-SA 3.0, via Wikimedia Commons.
Fought86 BC
WhereOrchomenus, Greece38.480N, 22.980E
OutcomeRoman victory
BelligerentsRoman RepublicagainstPontus
Casualties and lossesabout 100andHeavy, suggested some 15,000
Part ofFirst Mithridatic War89 BC to 85 BC

Where it sits in First Mithridatic War

Battle of the River Amnias, 89 BCBattle of Protopachium, 89 BCBattle of Mount Scorobas, 88 BCSiege of Rhodes, 88 BCBattle of Delos, 88 BCBattle of Chaeronea, 87 BCSiege of Athens, 87 BCBattle of Chaeronea, 86 BCBattle of Orchomenus, 86 BCBattle of Tenedos, 86 BC89 BC86 BCBattle of Orchomenus, 86 BC
10 placed engagements of First Mithridatic War in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date86 BC (year precision)
PlaceOrchomenus, Greece
38.480N, 22.980E
KindBattle, ancient
Strength30,00075,000–80,000
Casualties and lossesabout 100Heavy, suggested some 15,000
Commanders
  • Dorylaeus
Battle of OrchomenusBattle of OrchomenusBattle of TegyraBattle of ChaeroneaBattle of ChaeroneaSiege of LivadiaBattle of ChaeroneaBattle of TegyraSiege of LivadiaBattle of ChaeroneaAthensPatraLarissaAgrinioTripoliPirgosErmoupoliVolos100 km38.480N, 22.980E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Battle of Orchomenus is one of 159 engagements of the 1st century BC in the atlas and one of 493 in present-day Greece.

Sources

Identity, coordinates, dates and the war from Wikidata Q1509221, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Orchomenus, revision 1378283751, 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.