Astro-Gabonese philosophy, or Gabonese Astronism, refers to the presence of Astronism in the Gabonese Republic under management and philosophical jurisdiction of The Institution of The Philosophy of Millettism for the Gabonese Republic, a national subsidiary for the worldwide Astronist Institution. The Institution of the Philosophy of Millettism for the Gabonese Republic oversees the construction and maintenance of observatories and planetariums throughout its jurisdiction. 

Gabon is split into nine provinces and is set to hold one Grand Observatory in the capital city of Libreville. This national branch of The Institution of The Philosophy of Millettism manages the official representation and depiction of Astronism throughout this territory, including efforts to protect the identity of the philosophy with the intention of further disseminating it throughout the territory. 

It is The Institution alone that is granted the status of proprietor to the philosophy in this territory as any other organisations or institutions proclaiming such a role are deemed as unauthorised proprietors and are therefore considered as part of the anti-Institutionist movement. 

History of Astronism in Gabon

Astronism is not recognised as a religion by the Gabonese government yet the Astronist Institution does not consider there to be any significant violations of religious freedom for Astronists in Gabon, largely due to Gabon's positive track record with religious liberties. Astronists in Gabon number 200 people according to the Astronist Institution in November 2019. The majority of Gabonese speak French and due to the lack of Astronist content that has been accurately translated into French by 2019, this is considered a significant barrier for Gabonese Astronists to access content about Astronism.