ISO 3166-2:GW is the entry for Guinea-Bissau 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-Bissau, ISO 3166-2 codes are defined for two levels of subdivisions:
The autonomous sector Bissau is the capital of the country and has special status equal to the regions.
Each code consists of two parts, separated by a hyphen. The first part is GW, the ISO 3166-1 alpha-2 code of Guinea-Bissau. The second part is either of the following:
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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| Code | Subdivision name (pt) | Subdivision name (en)[note 1] |
|---|---|---|
| GW-L | Leste | East |
| GW-N | Norte | North |
| GW-S | Sul | South |
| Code | Subdivision name (pt) | Subdivision category | In province |
|---|---|---|---|
| GW-BA | Bafatá | region | L |
| GW-BM | Biombo | region | N |
| GW-BS | Bissau (Local variant: SAB) | autonomous sector | — |
| GW-BL | Bolama / Bijagós | region | S |
| GW-CA | Cacheu | region | N |
| GW-GA | Gabú | region | L |
| GW-OI | Oio | region | N |
| GW-QU | Quinara | region | S |
| GW-TO | Tombali | region | S |
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:
| Newsletter | Date issued | Description of change in newsletter |
|---|---|---|
| Newsletter II-1 | 2010-02-03 (corrected 2010-02-19) |
Addition of the country code prefix as the first code element |
| Online Browsing Platform (OBP) | 2020-11-24 | Change of subdivision name of GW-BL; Addition of local variation of GW-BS; Update List Source |