List of battles with most Romanian military fatalities

This article contains a list of battles and military campaigns with most Romanian military deaths.

Battle or siege	Conflict	Date	Estimated number killed	Opposing force	References
Siege of Odessa	World War II	August 8 to October 16, 1941	17,729 killed	Soviet Union	^[1]
Battle of Mărășești	World War I	August 6 to September 3, 1917	5,125 killed	Germany Austria-Hungary	^[2]
Battle of Mirăslău	Long Turkish War	September 18, 1600	Over 5,000 killed	Holy Roman Empire	^[3]
Siege of Sevastopol (1941–1942)	World War II	October 30, 1941 to July 4, 1942	1,597 killed	Soviet Union	^[4]
Battle of the Argeș	World War I	December 1 to 3, 1916	Over 1,000 killed	Germany Austria-Hungary Bulgaria Ottoman Empire	^[5]
Battle of Finta	War for the succession to the throne of Moldavia	May 27, 1653	1,000 killed	Moldavia Cossack Hetmanate Crimean Khanate German and Austrian mercenaries	^[6]

Campaign	Conflict	Date	Estimated number killed	Opposing force	References
Romanian Campaign	World War I	August 27, 1916 to December 1917 (first phase) November 10 to 11, 1918 (second phase)	335,706 killed	Germany Austria-Hungary Bulgaria Ottoman Empire	^[7]
Operation Barbarossa	World War II	June 22 to December 5, 1941	At least 39,000 killed	Soviet Union	^[8]
Crimean offensive	World War II	April 8 to May 12, 1944	25,800 killed	Soviet Union	^[9]
Operation München (Part of Operation Barbarossa)	World War II	July 2 to 26, 1941	4,112 killed	Soviet Union	^[10]
Southern Dobruja Offensive	Second Balkan War	July 10 to 18, 1913	1,600 killed	Bulgaria	^[11]

Battles