Gau

Gau (Cantonese), a Cantonese vulgar word.
Gau (administrative division), German term for a shire (region)
GAU (German acronym), German acronym of Größter Anzunehmender Unfall (literally: Worst imaginable accident, pronounced like the word Gau)
Gau, a feral child and one of the characters in Final Fantasy VI
Gau Island, an island in Fiji
Sacred cow in Hinduism
Chief Directorate of Artillery of the Russian Empire and Soviet Union
General Assistance Unemployable a Washington State unemployment program
Lokpriya Gopinath Bordoloi International Airport (IATA code GAU)
Saint Gaugericus (Gau, Géry)
Vladimir Gau, Russian painter
Gun, aircraft unit, a series of US aircraft guns: GAU-2/A, GAU-4/A, GAU-7/A, GAU-8/A, GAU-10/A, GAU-12/U, GAU-13/A, GAU-15/A, GAU-16/A, GAU-17/A, GAU-18/A, GAU-19/A, GAU-21/A