Milletto-Cameroonian philosophy, Cameroonian Millettism, Cameroonian Astronism, and also known as Cameroonian Éclaircissementism as part of the larger Éclaircissementism denomination, refers to the presence of The Philosophy of Millettism in the Republic of Cameroon under management and philosophical jurisdiction of The Institution of the Philosophy of Millettism for the Republic of Cameroon, a national subsidiary for the worldwide Institution of the Philosophy of Millettism.
The Institution of the Philosophy of Millettism for the Republic of Cameroon oversees the construction and maintenance of observatories and planetariums throughout its jurisdiction. Cameroon is split into ten semi-autonomous regions and holds one Grand Observatory in the capital city of Yaounde.