- Soviet Union: 26.6 million
- China: 20 million
- Germany: 7 million
- Poland: 6 million
- Japan: 3.1 million
- Yugoslavia: 1.7 million
- United Kingdom: 450,000
- France: 550,000
- United States: 419,400
- Italy: 450,000
- Canada: 45,000
It's important to note that these are estimates and the exact number of deaths is still debated by historians.