ISO 3166-2:AR is an ISO standard which defines geocodes: it is the subset of ISO 3166-2 which applies to Argentina. It describes 1 federal district (AR-C) and 23 provinces. The first part is the ISO 3166-1 code AR for Argentina, the second part of the code is one-digit-alphabetic. The letters have their origin in the Argentine license plates system.

See also

• ISO 3166-2, the reference table for all country region codes.
• ISO 3166-1, the reference table for all country codes, as used for domain names on the Internet.
• Provinces of Argentina
• UN/LOCODE:AR