You need a visa for Gabon if you have a German passport
Visa options for Gabon
Electronic visitor visa
Travelers need a visa to visit Gabon for Business or Tourism. A Gabon eVisa is the fastest and easiest way of obtaining a visa for Gabon because travelers can submit their applications and supporting documents online. Once the application is approved, travelers receive their eVisa confirmation electronically. Some travelers may encounter technical difficulties with the Gabon eVisa portal. Travelers who encounter difficulties must obtain a Visitor visa from their nearest consulate or local visa center. A valid visa is required to board the flight. If the visa is expired or doesn’t match the traveler’s passport information, travelers will not be able to board their flight.