Last reviewed: September 2, 2026
Guinea-Bissau is listed in Western Africa, within Africa. Its capital is Bissau. This page brings together the most commonly needed identifiers and geography facts in one place, with links to related reference lists.
Where is Guinea-Bissau?
For broad geographic classification, Guinea-Bissau is grouped under Africa and the subregion Western Africa. Regional labels can vary between statistical and geographic organizations, so this site uses one consistent classification for browsing rather than claiming there is only one valid convention.
What are the country codes for Guinea-Bissau?
The ISO-style two-letter code shown on this page is GW, while the three-letter code is GNB. Two-letter codes are especially common in software, forms and country-code domains; three-letter codes are useful where a more recognizable abbreviation is preferred. See our country code guide for context.
Borders and nearby geography
Guinea-Bissau has the following land-border entries in our source dataset: Guinea, Senegal. Island states and countries without a land frontier may show no land borders even though they have maritime neighbors.