The standard Austria abbreviation is AT, the two letter code that the ISO 3166 standard assigns to the country. Austria's three character partner code, AUT, is the one you will see in passports, on sports scoreboards and across many databases. The two codes cover almost every situation, from shipping labels to drop down menus.
The hard part is not Austria alone but Austria next to Australia. The two names start the same way, so the obvious guesses AU and AUS already belong to Australia. Knowing that one fact prevents most mistakes on forms and in spreadsheets.
Quick facts
Two letter code
ATThree letter code
AUTCar sticker code
AWeb ending
.atCalling code
+43Not to be confused with
AU and AUS, the codes for Australia
Every Austria abbreviation in one place
| System | Code | Where you see it |
|---|---|---|
| ISO two letter | AT | Address forms, shipping, online stores, bank codes |
| ISO three letter | AUT | Passports, sports scoreboards, data files |
| ISO number | 040 | Some official and statistical systems |
| Vehicle code | A | The oval sticker or the band on a license plate |
| Internet domain | .at | Websites based in Austria |
| Olympic code | AUT | Medal tables and team lists |
| Phone | +43 | International calls |
The country hub on this site, country, city and airport codes, explains how these systems differ from one another.
Why the Austria abbreviation is AT
Country codes usually take letters from the country's name, and sometimes from its name in its own language, as with DE for Deutschland. Austria's German name is Österreich, but its code uses the A and the T of the name Austria. The more obvious pair, AU, belongs to Australia, so the two countries could never share it.
The three letter codes work the same way: AUS is Australia, and Austria is AUT. If you remember "Austria has the T," you will rarely mix them up.
Abbreviation for Austria on forms and mail
Online forms usually ask for the country through a list, and the hidden value behind "Austria" is AT. When you type an address for international mail, though, write the full country name in capitals on the last line instead of a code. Postal workers in many countries read the English or French name.
An address line: "1010 Wien" on one line, then "AUSTRIA" on the last line. Vienna's postal codes start with 1, and Wien is the German name for the city.
In running text, such as a school report, it is best to write Austria in full. Short forms like Aus. or Aust. exist in some older references, but readers may take them for Australia, so avoid them.
Austria vs Australia: the classic mixup
| Code type | Austria | Australia |
|---|---|---|
| Two letter | AT | AU |
| Three letter | AUT | AUS |
| Web ending | .at | .au |
| Calling code | +43 | +61 |
Austria is a landlocked country in central Europe. Australia is a country and continent in the Southern Hemisphere. Mail and packages really do get sent to the wrong one when the code is wrong. See the Australia abbreviation page for its full set of codes.
Codes for Austrian cities, money and language
- Vienna airport: VIE is the code on luggage tags and tickets for the main airport serving the capital, a city that also hosts the headquarters of OPEC.
- Currency: Austria uses the euro, with the code EUR.
- Language tag: de-AT means German as used in Austria, which a website may use to show local spellings and words.
- Neighbors: Germany is DE and Switzerland is CH, two more codes people often guess wrong.
Using the codes in sentences
- "Pick AT in the dropdown when the order is going to Vienna."
- "The scoreboard showed AUT in first place after the downhill run."
- "Their car had a white A sticker, so we knew it came from Austria."
- "The bakery's website ends in .at, so it is an Austrian site."
Questions people ask
Which two letter code does Austria use?
It is AT. This is the ISO 3166 code used for shipping, online forms and most international data.
Is AU the abbreviation for Austria?
No. AU is Australia's two letter code. Austria uses AT, and its three letter code is AUT rather than AUS.
What does A mean on a car from Austria?
A is the international vehicle code for Austria. It appears on an oval sticker or on the blue band at the edge of a European license plate.
Does Austria have a three letter code?
Austria's longer code is AUT. It is used on passports, in many databases and on Olympic and other sports scoreboards.
How do you abbreviate Austria in writing?
In everyday writing it is best to spell out Austria. If space is tight, use AT or AUT rather than Aus., which readers may confuse with Australia.