|1947 Aleppo pogrom
||Half the city's Jewish population fled
|Jisr al-Shughour massacre (1980)
||9 March 1980
|Aleppo Artillery School massacre
||16 June 1979
|Siege of Aleppo (1980)
||more than 2000
||multiple massacres over a period of time
|1981 Hama massacre
||members of the male population rounded up and executed
|1982 Hama massacre
|Tadmor Prison massacre
||27 June 1980
|Siege of Hama
||31 July – 4 August 2012
||Syrian government forces reportedly killed up to 200 civilians in an assault on the city of Hama.
|Ram al-Anz and Ghajariyeh massacre
||27 February 2012
||Ram al-Anz and Ghajariyeh near Homs
||Syrian Observatory for Human Rights reported that 68 bodies were found between the villages of Ram al-Enz and Ghajariyeh. Syrian activists blamed pro-government militia.
|Karm al-Zeitoun massacre
||9 March 2012
||Karm al-Zeitoun, Homs
||Syrian Army reportedly massacred 47 people after entering Karm al-Zeitoun.
||5 April 2012
||Taftanaz, Idlib Governorate
||Syrian Army reportedly carried out a massacre by rounding up and executing people following the Battle of Taftanaz.
||25 May 2012
||49 children among the dead. The UN concluded Syrian government forces were responsible. However, after eye witness accounts published by German paper Frankfurter Allgemeine Zeitung claimed it was rebel sectarian violence, UNHRC concluded that there was insufficient evidence to determine who had committed the massacre.
|Al-Buwaida al-Sharqiya massacre
||31 May 2012
||6 June 2012
||Al-Qubair, in Maarzaf
||Victims were stabbed and shot.
|Daret Azzeh massacre
||22 June 2012
||Darat Azzah in Aleppo
||Rebels claim to have killed 25 men who they accused of being a part of the Shabbiha.
||20–25 August 2012
||Darayya, Rif Dimashq
||Many people were killed in a five-day Army assault on the town, which was rebel-held. According to the opposition, Human Rights Watch and some local residents the killings were committed by the Syrian military and Shabiha militiamen. According to the government and some local residents they were committed by rebel forces.
|Maarrat Al-Nu'man massacre
||8 – 13 October 2012
||During the Battle of Maarrat Al-Nu'man, the Syrian Army reportedly executed 65 people, including 50 defecting soldiers.
||11 December 2012
||Aqrab, Hama Governorate
||125 (Includes wounded)
||Alawite villagers attacked by Syrian rebels, with 10 confirmed killed.
|Basatin al-Hasawiya massacre
||15 January 2013
||Syrian government troops stormed the village of Basatin al-Hasawiya on the outskirts of Homs city reportedly killing 106 civilians.
|Queiq River massacre
||29 January–14 March 2013
||Queiq River, Aleppo
||Between 29 January and 14 March 2013, opposition activists claimed that they found about 230 bodies on the banks and in the Queiq river in Aleppo. They accused government forces of being the ones who executed the men since the bodies came down the river from the direction of government-held areas of the city. Human Rights Watch was able to identify at least 147 victims, all male and aged between 11 and 64.
|Battle of Jdaidet al-Fadl
||16–21 April 2013
||Syrian Army was accused by the opposition of carrying out a massacre. SOHR claimed that 250 people were killed since the start of the battle, with them being able to document, by name, 127 of the dead, including 27 rebels. Another opposition claim put the death toll at 450. One activist source claimed he counted 98 bodies in the town's streets and 86 in makeshift clinics who were summarily executed. Another activist stated they documented 85 people who were executed, including 28 who were killed in a makeshift hospital.
|Bayda and Baniyas massacres
||2–3 May 2013
||Bayda and Baniyas, Tartus Governorate
||Assault by Alawite militias against the local Sunni population.
||11 June 2013
||Hatla, Deir el-Zour
||Shiite villagers killed by Syrian rebels.
|Khan al-Assal massacre
||22 July 2013
||Khan al-Assal, Aleppo, Syria
||Rebels executed 51–123 POWs and Civilians. 
|Alawite villages of Latakia countryside massacres
||4 August 2013
||Rebel groups, al-Nusra Front, the Islamic State of Iraq and the Levant (ISIS), Jaish al-Muhajireen wal-Ansar, Ahrar al-Sham and Suqour al-Ezz, attacked and overran army positions in the Sheikh Nabhan area. Human Rights Watch claimed some 190 noncombatants were killed.
|August 2013 Ghouta chemical attack
||21 August 2013
||Al-Ghouta, Damascus, Syria
||Syrian activists reported that government forces struck Jobar, Zamalka, 'Ain Tirma, and Hazzah in the Eastern Ghouta region with chemical weapons.
||6 December 2013
||This was the alleged massacre of at least 32 civilians in the industrial town of Adra, Syria. Government claims that at least 80 were killed. It was reportedly conducted by the al-Nusra Front and Jaysh al-Islam, a subgroup of the Islamic Front.
||Mid August 2014
||Deir ez-Zor Governorate
||In mid August Islamic State fighters massacred some 700 people, mostly men, of the Shu'aytat tribe in Deir ez-Zor Governorate.
||25 April 2015
||Eshtabraq, Idlib Governorate
||After Jabhat al-Nusra and Islamist allies in the "Army of Conquest" seized Jisr al-Shughour, they attacked an Alawite village named Eshtabraq and committed the massacre.
||22 May 2015
||Tadmur, Homs Governorate
||After capturing the city of Palmyra, Islamic State massacred over 400 civilians
|Qalb Loze massacre
||10 June 2015
||On 10 June al-Nusra massacred a Druze community in the village from Qalb lawza in Idlib province 
|Kafr Saghir massacre
||20 March 2016
||Islamic State massacred 20+ Arabs and Kurds while attacking the Government held town of Kafr Saghir 
||12 May 2016
||Rebels led by the Al-Qaeda branch Jabhat al-Nusra and Ahrar ash-Sham massacred 42 civilians and seven NDF militiamen while kidnapping up to 70 people after taking control of the Alawite village of Zara'a in Southern Hama.
|2016 Hama massacre
||11 December 2016
||Russian and SAA faced humiliating defeat as few poorly equipped IS soldiers overran Palmyra. Russians and SAA then took revenge upon the sunni muslim civilians in eastern Hama towards Palmyra.