Casualties of the Syrian civil war
| Pre-war population 22 ±.5; Internally displaced 6 ±.5, Refugees 5.5 ±.5, Fatalities 0.5 ±.1 (millions) | |
| Syrian refugees | |
| By country | Turkey, Lebanon, Egypt, Jordan |
| Settlements | Camps: Jordan |
| Internally displaced Syrians | |
| Casualties of the war | |
| Crimes | War crimes, massacres, rape |
| Return of refugees, Refugees as weapons, Prosecution of war criminals | |
Estimates of the total number of deaths in the Syrian Civil War, by various war monitors, range between 580,000 as of May 2021, and approximately 656,493 as of March 2025. In late September 2021, the United Nations stated it had documented the deaths of at least 350,209 "identified individuals" in the conflict between March 2011 and March 2021, but cautioned the figure was "certainly an under-count" that specified only a "minimum verifiable number".
The most violent year of the conflict was 2014, when around 110,000 people were killed. In April 2016, UN envoy to Syria Staffan de Mistura stated that more than 400,000 people were killed in the Syrian civil war. By mid-March 2025, opposition activist group the Syrian Observatory for Human Rights (SOHR) reported the number of children killed in the conflict had risen to 26,282, and that 16,181 women had also been killed.
On 28 June 2022, the United Nations Human Rights Office (OHCHR) stated that at least 306,887 civilians had been killed in Syria during the conflict between March 2011 and March 2021, representing about 1.5% of its pre-war population. This figure did not include indirect and non-civilian deaths. UN's commission of inquiry on the Syrian Arab Republic estimated that between 2011 and May 2021, more than 580,000 people were killed; with 13 million Syrians being displaced and 6.7 million refugees forced to flee Syria. Ba'athist government forces reportedly arrested and tortured numerous repatriated refugees, subjecting them to forced disappearances and extrajudicial executions.
As of February 2015, the UNHCR has designated the conflict as the "world's worst humanitarian crisis", while the head of the UNHRC's commission for Syria stated that the Ba'athist government was responsible for the majority of civilian casualties up to that point. The Syrian Network for Human Rights estimated that between 2011 and 2024, the Ba'athist government and its foreign allies were responsible for approximately 91% of the total civilian casualties.