Blau is the German and Catalan word for the color blue. It may refer to:

Places Blau (Danube), a tributary of the Danube river in Germany Blau Monuments, pair of inscribed stone objects from Mesopotamia

People Blau (surname) 3lau (pronounced Blau), stagename of DJ Justin Blau (born 1991)

Art and music Blau (album), a 2013 Japanese album by Eir Aoi Blau, a 1974 album by Conrad Schnitzler

Other uses Blau gas, an artificial illuminating gas Case Blue (), 1942 WWII German summer offensive in southern USSR Tramvia Blau, a blue streetcar line in Barcelona, Spain

See also

Blausee (Blue Lake), a small lake in the Kander valley, Switzerland Blautopf, a spring that serves as the source of the river Blau

Blauw (disambiguation) Blaw (disambiguation) Blue (disambiguation)