Abu al-Hussein al-Husseini al-Qurashi (Arabic: أبو الحسين الحسيني القرشي, romanized: Abū al-Ḥusayn al-Husaynī al-Qurashī; died 29 April 2023) was the fourth caliph[a] of the Islamic State and allegedly the first Syrian to serve as caliph.

[10] In January 2023, a prominent dissident anti-IS leadership channel alleged that Abu al-Hussein was Iraqi like his predecessors and was appointed by a shura council led by Abdul Raouf al-Muhajir,[11][12] emir of Islamic State's administration.

In June 2023, British tabloid the Daily Mirror claimed that Abu al-Hussein was possibly among 5 IS leaders who were reportedly killed in an Iraqi/UK airstrike in the Hamrin region of Iraq, but the report was not confirmed by any other sources and the eventual confirmation of Abu al-Hussein's death said he was killed in Syria, not Iraq.

[28] On 4 August, HTS in an official statement denied Islamic State's claim that they killed Abu al-Hussein.

[29] However, United States officials agreed that HTS was behind the death of Abu al-Hussein al-Husseini al-Quraishi.