This is a timeline of ISIL-related events that occurred in the year 2020.

• On 9 January in a gunfight at a Niger military base, 89 Niger Armed Forces soldiers and 77 ISIL militants killed during the battle.^[1][2]

• On 2 February, two people were stabbed in Streatham, London, and one more had minor injuries.^[3] The perpetrator, Sudesh Amman, who was a fighter of Islamic State and had previously praised it, was shot dead by police.^[4]
• On 9 February an individual conducted a vehicle-borne improvised explosive device (VBIED) suicide attack targeting a military outpost in southern Algeria, near the border with Mali, killing himself and one Algerian soldier.^[5]

• On 6 March, ISIL gunmen killed 32 people and injured over 80 people at a ceremony in Kabul, Afghanistan.^[6][7]
• On 25 March, ISIL killed 25 people in a gurdwara in Kabul, Afghanistan.^[8]

• On April 27, a French man who pledged allegiance to ISIS intentionally rammed his car into two police officials, gravely injuring both, near Paris.^[9]

• On 12 May, gunmen executed a mass shooting at a hospital's maternity ward. 80 patients were evacuated, 24 victims, including newborn babies, mothers, and nurses, killed by the gunmen and all three attackers killed by the army; An hour after the Kabul attack, a suicide bombing took place in Kuz Kunar, Nangarhar Province at the funeral of a police commander, killing 32 mourners and injuring 133 others.^[10]

• On August 3, the ISIL launched an attack on an Afghan prison that left at least 29 dead.^[11][12]
• On August 6, ISIS-SP attacked an EAF checkpoint with small arms resulting in the deaths of 15 EAF soldiers near Wasit in South Sinai, Egypt.^[13]
• On August 21, militants led by ISIS-affiliated terrorist Khaled al-Talawi killed two police officers and one civilian in the town of Kaftoun in northern Lebanon.^[14] The LAF apprehended and killed al-Talawi on September 13 near Tripoli. As a result, four LAF soldiers were killed during the operation.^[15]

• Between November 2–3, five were killed in Stadttempel, Vienna, including the perpetrator.^[16] The Vienna Police Department confirmed that the attacker was an Islamic State sympathizer, and that the attack was motivated by Islamic extremism.^[17]

• On 30 December, an assault targeted a convoy of Syrian regime soldiers and militiamen of Bashar al-Assad's elite Fourth Brigade returning from their posts in Deir Ez-Zor. The bus was ambushed in a well-planned operation near the village of Shula by jihadists who set up a false checkpoint to stop the convoy and detonated bombs before opening fire.^[18]