Mab or MAB may refer to:
- Queen Mab, a fairy in Shakespeare's Romeo and Juliet and later works of English literature.
- Mab (moon), one of the moons of Uranus, named after Queen Mab
- Manufacture d'armes de Bayonne, a French firearms manufacturer
- Mercado Alternativo Bursátil, Spain's alternative stock market, akin to London's Alternative Investment Market
- Metropolitan Asylums Board - operating in London, dealing with the Poor Law
- Mid-Atlantic Bight
- MAB Corporation, Australian company
- Mabuhay Gardens, a nightclub in San Francisco
- Mozilla Address Book
- Muslim Association of Britain, a Muslim group in the United Kingdom established in 1997
- Programme on Man and the Biosphere, a project of UNESCO
- Monoclonal antibody (mAb), a molecular component of the vertebrate immune system and a type of biotechnology reagent and medical therapeutic
- Moschetto Automatico Beretta, a sub-machine gun manufactured in Italy by Beretta during World War II.
- Movimento dos Atingidos por Barragens, a Brazilian left-wing organization.
- Middle Atlantic Bight or Mid-Atlantic Bight, an unofficial term used by oceanographers for the continental shelf region off the U.S. east coast, from Cape Hatteras, NC, to Cape Cod, MA, including Chesapeake Bay and the New York Bight
- Michael Angelo Batio, an American guitarist
- Miguel Ángel Burelli Rivas, a Venezuelan politician
- Marc-André Bergeron, ice hockey defenceman
- Marco Antonio Barrera, Mexican boxer
- Y Mab Darogan, a figure of Welsh legend
Famous quotes containing the word mab:
“Romeo. I dreamt a dream tonight.
Mercutio. And so did I.
Romeo. Well, what was yours?
Mercutio. That dreamers often lie.
Romeo. In bed asleep, while they do dream things true.
Mercutio. O then I see Queen Mab hath been with you.
She is the fairies’ midwife, and she comes
In shape no bigger than an agate stone
On the forefinger of an alderman,
Drawn with a team of little atomi
Over men’s noses as they lie asleep.”
—William Shakespeare (1564–1616)