Visitors to Cameroon must obtain a visa from one of the Cameroonian diplomatic missions unless they come from one of the visa exempt countries.
Citizens of the following 6 countries can visit Cameroon without a visa for up to 90 days:
Central African Republic
Chad
Congo
Equatorial Guinea
Gabon
Nigeria
Holders of diplomatic or service category passports issued to nationals of China, Italy and Turkey do not require a visa for Cameroon.
Visa waiver agreement for diplomatic and service passports was signed with
Country : CameroonVietnam and it is yet to come into force.