ISO 3166-2:GN is the entry for Guinea 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 Guinea, ISO 3166-2 codes are defined for two levels of subdivisions:

• 7 administrative regions and 1 governorate
• 33 prefectures

The governorate Conakry is the capital of the country and has special status equal to the administrative regions.

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

• one letter: administrative regions and governorate
• two letters: prefectures

Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).

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The following changes to the entry have been announced in newsletters by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998:

• Subdivisions of Guinea
• FIPS region codes of Guinea
• Neighbouring countries: CI, GW, LR, ML, SL, SN