AB, Ab, or ab may refer to:
Abortion is the ending of pregnancy by removing an embryo or fetus before it can survive outside the uterus.
ABBA (Swedish pronunciation: [²abːa]) are a Swedish pop group, formed in Stockholm in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad.
Abu Dhabi (US: , UK: ; Arabic: أبو ظبي Abū Ẓabī [ɐˈbuˈðˤɑbi]) is the capital and the second most populous city of the United Arab Emirates (the most populous being Dubai), and also capital of the Emirate of Abu Dhabi, the largest of the UAE's seven emirates.
The Abrahamic religions, also referred to collectively as Abrahamism, are a group of Semitic-originated religious communities of faith that claim descent from the practices of the ancient Israelites and the worship of the God of Abraham.
The Abbasid Caliphate ( or Arabic: ٱلْخِلافَةُ ٱلْعَبَّاسِيَّة al-Khilāfatu al-‘Abbāsiyyah) was the third of the Islamic caliphates to succeed the Islamic prophet Muhammad.
Abdullah II bin Al-Hussein (Arabic: عبد الله الثاني بن الحسين, ʿAbdullāh ath-thānī ibn Al-Ḥusayn, born 30 January 1962) has been King of Jordan since 1999. According to Abdullah, he is a 41st-generation direct descendant of Muhammad as he belongs to the Hashemite family—who have ruled Jordan since 1921.
Abraham (; Hebrew: אַבְרָהָם, Modern ʾAvraham, Tiberian ʾAḇrāhām; Arabic: إبراهيم Ibrahim), originally Abram (Hebrew: אַבְרָם, Modern ʾAvram, Tiberian ʾAḇrām), is the common patriarch of the three Abrahamic religions.
Absinthe (; French: [apsɛ̃t]) is historically described as a distilled, highly alcoholic (45–74% ABV / 90–148 U.S.