AB, Ab, or ab may refer to:
Abu Dhabi (US: , UK: ; Arabic: أَبُو ظَبِي Abū Ẓabī Arabic pronunciation: [ɐˈbuˈðˤɑbi]) is the capital and the second most populous city of the United Arab Emirates (after Dubai).
ABBA (Swedish pronunciation: [ˇabːa]) is a Swedish pop supergroup formed in Stockholm in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad.
Abortion is the ending of a pregnancy by removal or expulsion of an embryo or fetus before it can survive outside the uterus.
The Abrahamic religions, also referred to collectively as Abrahamism, are a group of Semitic-originated religious communities of faith that claim descent from the Judaism of the ancient Israelites and the worship of the God of Abraham.
The Aberfan disaster was the catastrophic collapse of a colliery spoil tip at around 9:15 am on 21 October 1966. The tip had been created on a mountain slope above the Welsh village of Aberfan, near Merthyr Tydfil, and overlaid a natural spring.
Abū Bakr al-Baghdadi al-Qurayshi (Arabic: أبو بكر البغدادي; born Ibrahim Awad Ibrahim Ali al-Badri al-Samarrai, إبراهيم عواد إبراهيم علي محمد البدري السامرائي; 28 July 1971 – 27 October 2019) was the Iraqi-born leader of the Islamic State of Iraq and the Levant (ISIL).
The Abbasid Caliphate ( or Arabic: ٱلْخِلَافَة ٱلْعَبَّاسِيَّة, al-Khilāfah al-ʿAbbāsīyah) was the third of the Islamic caliphates to succeed the Islamic prophet Muhammad.
During the war in Iraq that began in March 2003, personnel of the United States Army and the Central Intelligence Agency committed a series of human rights violations against detainees in the Abu Ghraib prison in Iraq.