Do United Kingdom passport holders need a visa to visit GW?

UK ordinary passport holders need a visa for Guinea-Bissau. A visa on arrival is available at Osvaldo Vieira International Airport in Bissau, but the UK FCDO strongly recommends obtaining a visa in advance from a Guinea-Bissau embassy (the nearest is in Paris; consulates also operate in Senegal). A yellow fever vaccination certificate is mandatory on entry. There is no visa-free or visa-waiver arrangement between the United Kingdom and Guinea-Bissau, and Guinea-Bissau is not in the Schengen area. UK citizens fall into the category of travellers who are not visa-exempt and who may obtain a visa on arrival at the airport in Bissau or apply in advance at a Guinea-Bissau diplomatic mission. The official UK FCDO travel advice states plainly that a visa is required and directs travellers to the Guinea-Bissau Embassy in Paris (or embassies in neighbouring countries such as Senegal). Wikipedia's visa policy summary confirms that non-exempt nationals, including UK citizens, may obtain a visa on arrival valid for a maximum stay of 90 days, or from a consulate. Because the on-arrival channel can be unreliable and is subject to change, the FCDO and most agencies advise securing the visa before travel. A valid yellow fever vaccination certificate is a strict, separately enforced entry requirement, and passports must be valid for at least six months from the date of arrival. As of 2026 there is no confirmed government-operated eVisa portal for Guinea-Bissau verified by official sources, so the conservative, accurate channel for a short tourist stay is a visa on arrival, backed up by an embassy-issued visa obtained in advance where possible.