Dau or DAU may refer to:
The Daughters of the American Revolution (DAR) is a lineage-based membership service organization for women who are directly descended from a person involved in the United States' struggle for independence.
Dauphin County /ˈdɔːfɪn/ is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 268,100. The county seat and the largest city is Harrisburg, Pennsylvania's state capital and tenth largest city.
Daunte Rachard Culpepper (born January 28, 1977) is a former American football quarterback. He last played for the Sacramento Mountain Lions of the United Football League (UFL).
Daucus carota, whose common names include wild carrot, bird's nest, bishop's lace, and Queen Anne's lace (North America), is a white, flowering plant in the family Apiaceae, native to temperate regions of Europe and southwest Asia, and naturalized to North America and Australia.
Daugavpils (Latvian pronunciation: [ˈdaʊɡaʊpils]; Latgalian: Daugpiļs [ˈdaʊkʲpʲilʲsʲ]; Russian: Даугавпилс [ˈdaʊɡəfpʲɪls]; see other names) is a city in southeastern Latvia, located on the banks of the Daugava River, from which the city gets its name.
Daughtry /ˈdɔːtri/ is an American rock band formed and fronted by namesake Chris Daughtry, who was a finalist on the fifth season of American Idol.
The Dauphiné (/ˌdoʊfiːˈneɪ/ or /ˈdoʊfɪneɪ/; French pronunciation: [dofine]) or Dauphiné Viennois, formerly Dauphiny in English, is a former province in southeastern France, whose area roughly corresponded to that of the present departments of Isère, Drôme, and Hautes-Alpes.