AB, ab and other capitalisations may refer to:

Abraham Benjamin de Villiers (born 17 February 1984, Pretoria, Transvaal Province, South Africa) more commonly known by his initials AB is a South African cricketer and captain of the South African One Day International (ODI) and Twenty20 teams, having succeeded Graeme Smith in both roles after the 2011 Cricket World Cup. He is also part of Royal Challengers Bangalore in the Indian Premier League.

De Villiers is a right-handed batsman, who, in a very short space of time, has accumulated many runs in Tests including centuries against England, India, the West Indies and Australia. He has been dismissed in the 90s on five occasions in Tests. He still holds the record for most Test innings without registering a duck (78), before being dismissed for nought against Bangladesh in November 2008. He also holds the record for the highest individual score by a South African batsman in an innings, with 278*. He is an occasional wicketkeeper for the South African cricket team, and is commonly regarded as one of the best fielders currently in international cricket. AB de Villiers blasted the seventh fastest century in ODI cricket, in 58 balls, when he slammed an unbeaten 102 off just 59 balls against India in Ahmedabad in February 2010. He reached the top of the Test Batting rankings in March 2012.

Aishwarya Rai, known also as Aishwarya Rai Bachchan after her marriage (Tulu pronunciation [əjɕʋərjaː rəj]; born 1 November 1973) is an Indian film actress. She worked as a model before starting her acting career, and ultimately won the Miss World pageant in 1994. Rai has featured in films in various languages including Hindi, English, Tamil, Telugu, and Bengali.

Often cited by the media as the "most beautiful woman in the world", Rai made her acting debut with Mani Ratnam's Tamil film Iruvar (1997), and had her first commercial success in Jeans (1998). She found success in Bollywood with Sanjay Leela Bhansali's Hum Dil De Chuke Sanam (1999) and Devdas (2002) and eventually won two Filmfare Awards in the Best Actress category.

After a series of unsuccessful films during 2003–2005, she appeared in the blockbuster action thriller Dhoom 2 (2006) and subsequently featured in such films as Guru (2007), Jodhaa Akbar (2008), and Enthiran (2010). She gained critical acclaim for her performances in offbeat, independent films such as Chokher Bali (2003), Raincoat (2004), and Provoked (2007). Rai has thus established herself as one of the leading contemporary actresses of Indian cinema.