DA

Da, da, or dA may refer to:

• da may be used for "the" in text talk (to give one's self an accent)
• Da (play), a Tony-winning play by Hugh Leonard
• Da (film), a movie adaptation of the play by Hugh Leonard
• Adi Da, a spiritual leader once known as Da Free John, and Da Love-Ananda
• Da!, a Russian youth movement
• Da (political party), a defunct Israeli political party
• Da County, county in Sichuan, China
• Da River in Vietnam
• Dalton (unit), the atomic mass unit (symbol Da)
• Danish language (ISO 639-1 alpha-2 code da)
• Deca- (symbol da), an SI prefix for a factor of 10
• Decaampere (symbol dA), an SI unit of electric current
• SJ Da, a Swedish locomotive
• 大 (traditional and simplified, Pinyin dà), a Chinese character meaning big

DA or D.A. is an acronym or abbreviation for:

• DA postal area
• Daniel Amos, the American Rock band hell ya
• Dark Ages (computer game)
• Darmstadt, a town in middle Germany
• Debtors Anonymous
• Deerfield Academy, a preparatory boarding school located in Deerfield, Massachusetts.
• Degtyarev Aviation-mounted, a Soviet machine gun
• Delt Ansvarlig Selskap, or DA, a Norwegian company form
• Democratic Alliance (South Africa), a South African political party.
• Denmark, a country in northern Europe (FIPS country code DA, obsolete NATO country code DA)
• Department of Agriculture, an executive department in the Philippines.
• US Department of the Army
• Deutsche Alternative (German Alternative), a rightist group
• deviantART, an online artistic community
• Diploma in Anaesthetics, an obsolete postgraduate qualification in anaesthetic practice
• DirectAdmin, a graphical web-based management utility
• Distribution amplifier
• District attorney (D.A.), a United States Attorney or County attorney
  • The D.A. (1971 TV series), an NBC dramatic series
  • The D.A. (2004 TV series), an ABC dramatic series
• Doctor of Arts degree
• Dopamine neurotransmitter
• Doomsday argument
• Double action, a type of gun trigger
• Double anal, a sexual act
• Duck's Ass, a 1950s hairstyle
• Dumbledore's Army in Harry Potter and the Order of the Phoenix
• Dura-Ace, a Shimano racing bicycle groupset
• Durham Academy, a private school
• Selskap med delt ansvar, a type of Norwegian company without limited liability
• Dominion Atlantic Railway
• David Archuleta, is an American singer-songwriter