Abu Omar may refer to:
People
Abu Omar al-Baghdadi (died 2010), Iraqi insurgent
Abu Qatada al-Filistini (born 1959), sometimes called Abu Omar, Jordanian militant living in England
Ahmed Ali Ahmed, also known as Abu Omar, former leader of al-Qaeda in Iraq
Hassan Mustafa Osama Nasr (born 1963), also known as Abu Omar, Egyptian cleric kidnapped in Milan by the CIA in 2003
Abu Hassan Omar (1940–2018), Malaysian politician
Abu Hafs Umar al-Iqritishi (died 855), Muslim pirate
Abu Hafs Umar al-Nasafi (1067–1142), Muslim jurist and theologian
Abu Hafs Umar al-Murtada (died 1266), Almohad caliph
Abu Omar al-Muhajir, Islamic State spokesman
Mahdi Abu-Omar (born 1970), Palestinian-American chemist
Mohammed Mohiedin Anis (born 1946/7), Syrian businessman and car collector, also known as Abu Omar
Nasir (aka Abu Umar, born 1980), Pakistani Lashkar-e-Taiba militant, one of the perpetrators of the 2008 Mumbai attacks
Nazir (aka Abu Umer), Pakistani Lashkar-e-Taiba militant, also one of the perpetrators of the 2008 Mumbai attacks
Places
Abu Omar, Idlib, a Syrian village located in Al-Tamanah Nahiyah in Maarrat al-Nu'man District, Idlib