This article contains a summary of deaths by nationality during World War I.

Military Deaths

Included in brackets the percent of the total forces mobilized by that country that were killed in action.

NOTE: This data shows deaths only, not casualties, which include the wounded as well as the dead.

Allied soldiers killed

• Belgium: 13,700 (5.14%)
• British Empire: 908,000 (10.20%)
  • Australia: 60,000
  • Canada: 60,000
  • India: 25,000
  • New Zealand: 16,000
  • South Africa: 7,000
  • United Kingdom: 715,000
• France: 1,375,000 (16.36%)
  • French colonies: 100,000
• Greece: 5,000 (2.17%)
• Italy: 650,000 (11.58%)
• Japan: 300 (0.04%)
• Montenegro: 3,000 (6.00%)
• Portugal: 7,200 (7.22%)
• Romania: 336,000 (44.76%)
• Russia: 1,700,000 (14.17%)
• Serbia: 45,000 (6.36%)
• United States: 126,000 (2.89%)

Total Allied soldiers killed: approximately 5.17 million

Central Powers soldiers killed

• Austria-Hungary: 1,200,000 (15.38%)
• Bulgaria: 87,500 (7.29%)
• Germany: 1,800,000 (16.12%)
• Ottoman Empire: 325,000 (11.40%)

Total Central Powers soldiers killed: approximately 3.4 million.

Total soldiers killed worldwide: approximately 8.6 million.

Civilians killed

• Austria-Hungary: 300,000
• Belgium: 30,000
• Bulgaria: 275,000
• France: 40,000
• Germany: 760,000
• Greece: 132,000
• Norway: 1,900 sailors died, mostly by their vessels torpedoed by German submarines.
• Romania: 275,000
• Russia: 3,000,000
• Serbia: 650,000
• Ottoman Empire: 1,000,000
• United Kingdom: 31,000

Total civilians killed: approximately 6.5 million

Note that there is some debate if indirect deaths, like those killed by the Spanish Flu should be counted. If so, 25 million to 40 million more civilians should be added to the WWI death toll.

See Also

World War II casualties

Reference

• Trenches on the Web