| 1 | 40,000,000 | Red China, 1949-76 (outright killing, manmade famine, Gulag) |
| 2 | 10,000,000 | Soviet Bloc: late Stalinism, 1950-53; post-Stalinism, to 1987 (mostly Gulag) |
| 3 | 4,000,000 | Ethiopia, 1962-92: Communists, artificial hunger, genocides |
| 4 | 3,800,000 | Zaire (Congo-Kinshasa): 1967-68; 1977-78; 1992-95; 1998-present |
| 5 | 2,800,000 | Korean war, 1950-53 |
| 6 | 1,900,000 | Sudan, 1955-72; 1983-2006 (civil wars, genocides) |
| 7 | 1,870,000 | Cambodia: Khmer Rouge 1975-79; civil war 1978-91 |
| 8 | 1,800,000 | Vietnam War, 1954-75 |
| 9 | 1,800,000 | Afghanistan: Soviet and internecine killings, Taliban 1980-2001 |
| 10 | 1,250,000 | West Pakistan massacres in East Pakistan (Bangladesh 1971) |
| 11 | 1,100,000 | Nigeria, 1966-79 (Biafra); 1993-present |
| 12 | 1,100,000 | Mozambique, 1964-70 (30,000) + after retreat of Portugal 1976-92 |
| 13 | 1,000,000 | Iran-Iraq-War, 1980-88 |
| 14 | 900,000 | Rwanda genocide, 1994 |
| 15 | 875,000 | Algeria: against France 1954-62 (675,000); between Islamists and the government 1991-2006 (200,000) |
| 16 | 850,000 | Uganda, 1971-79; 1981-85; 1994-present |
| 17 | 650,000 | Indonesia: Marxists 1965-66 (450,000); East Timor, Papua, Aceh etc, 1969-present (200,000) |
| 18 | 580,000 | Angola: war against Portugal 1961-72 (80,000); after Portugal's retreat (1972-2002) |
| 19 | 500,000 | Brazil against its Indians, up to 1999 |
| 20 | 430,000 | Vietnam, after the war ended in 1975 (own people; boat refugees) |
| 21 | 400,000 | Indochina: against France, 1945-54 |
| 22 | 400,000 | Burundi, 1959-present (Tutsi/Hutu) |
| 23 | 400,000 | Somalia, 1991-present |
| 24 | 400,000 | North Korea up to 2006 (own people) |
| 25 | 300,000 | Kurds in Iraq, Iran, Turkey, 1980s-1990s |
| 26 | 300,000 | Iraq, 1970-2003 (Saddam against minorities) |
| 27 | 240,000 | Colombia, 1946-58; 1964-present |
| 28 | 200,000 | Yugoslavia, Tito regime, 1944-80 |
| 29 | 200,000 | Guatemala, 1960-96 |
| 30 | 190,000 | Laos, 1975-90 |
| 31 | 175,000 | Serbia against Croatia, Bosnia-Herzegovina, Kosovo, 1991-1999 |
| 32 | 150,000 | Romania, 1949-99 (own people) |
| 33 | 150,000 | Liberia, 1989-97 |
| 34 | 140,000 | Russia against Chechnya, 1994-present |
| 35 | 150,000 | Lebanon civil war, 1975-90 |
| 36 | 140,000 | Kuwait War, 1990-91 |
| 37 | 130,000 | Philippines: 1946-54 (10,000); 1972-present (120,000) |
| 38 | 130,000 | Burma/Myanmar, 1948-present |
| 39 | 100,000 | North Yemen, 1962-70 |
| 40 | 100,000 | Sierra Leone, 1991-present |
| 41 | 100,000 | Albania, 1945-91 (own people) |
| 42 | 80,000 | Iran, 1978-79 (revolution) |
| 43 | 75,000 | Iraq, 2003-present (domestic) |
| 44 | 75,000 | El Salvador, 1975-92 |
| 45 | 70,000 | Eritrea against Ethiopia, 1998-2000 |
| 46 | 68,000 | Sri Lanka, 1997-present |
| 47 | 60,000 | Zimbabwe, 1966-79; 1980-present |
| 48 | 60,000 | Nicaragua, 1972-91 (Marxists/natives etc,) |
| 49 | 51,000 | Arab-Israeli conflict 1950-present |
| 50 | 50,000 | North Vietnam, 1954-75 (own people) |
| 51 | 50,000 | Tajikistan, 1992-96 (secularists against Islamists) |
| 52 | 50,000 | Equatorial Guinea, 1969-79 |
| 53 | 50,000 | Peru, 1980-2000 |
| 54 | 50,000 | Guinea, 1958-84 |
| 55 | 40,000 | Chad, 1982-90 |
| 56 | 30,000 | Bulgaria, 1948-89 (own people) |
| 57 | 30,000 | Rhodesia, 1972-79 |
| 58 | 30,000 | Argentina, 1976-83 (own people) |
| 59 | 27,000 | Hungary, 1948-89 (own people) |
| 60 | 26,000 | Kashmir independence, 1989-present |
| 61 | 25,000 | Jordan government vs. Palestinians, 1970-71 (Black September) |
| 62 | 22,000 | Poland, 1948-89 (own people) |
| 63 | 20,000 | Syria, 1982 (against Islamists in Hama) |
| 64 | 20,000 | Chinese-Vietnamese war, 1979 |
| 65 | 19,000 | Morocco: war against France, 1953-56 (3,000) and in Western Sahara, 1975-present (16,000) |
| 66 | 18,000 | Congo Republic, 1997-99 |
| 67 | 10,000 | South Yemen, 1986 (civil war) |