ISO 3166-2:VN

ISO 3166-2:VN is the entry for Vietnam in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

Currently for Vietnam, ISO 3166-2 codes are defined for 58 provinces and five municipalities. The municipalities have special status equal to the provinces. However, those definition and assignment have become obsoleted in practice and are subjects to be updated, following the Plan to arrange and merge administrative units in Vietnam 2024–2025.

Each code consists of two parts separated by a hyphen. The first part is VN, the ISO 3166-1 alpha-2 code of Vietnam. The second part either of the following:

  • two digits: provinces
  • two letters: municipalities

The current Vietnamese entry is inherited from the entry representing the former Republic of Viet-Nam, while Democratic Republic of Viet-Nam used a different profile (VD/VDR), which has been retired and achieved under ISO 3166-3 as "VDVN".