The Lisbon Geographic Society (Portuguese: Sociedade de Geografia de Lisboa) is a Portuguese scientific society created in Lisbon in the year of 1875, aiming to "promote and assist the study and progress of geography and related sciences in Portugal."
The Society was created in the context of the European movement of exploration and colonization, having its activity particular emphasis in the exploration of the African Continent.
On 10 November 1875, a group of 74 subscribers petition King Luís I of Portugal the creation of a society, to be called Sociedade de Geografia de Lisboa, with the objective to "promote and assist the study and progress of geography and related sciences in the country." Two of the subscribers were Luciano Cordeiro and Teófilo Braga, among many other intellectuals, journalists, and politicians of that time.
The Society's goals were to organize conferences and scientific congresses, and grant funds destined to exploration trips and scientific investigation.
In December 1876, the Society initiated the publication of the Boletim da Sociedade de Geografia de Lisboa (Lisbon's Geographic Society Bulletin), still in force today.