The Anglo-French Convention of 1882 marks the territorial boundaries between Guinea and Sierra Leone.

The Anglo-French Convention of 1882 was signed on 28 June 1882 between Great Britain and France. It confirmed the territorial boundaries between Guinea and Sierra Leone around Conakry and Freetown. However, it was never fully ratified by the French Chamber of Deputies although it was officially recognised by the British Foreign Office.

Guinea, officially the Republic of Guinea, is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Côte d'Ivoire to the southeast, and Sierra Leone and Liberia to the south. It is sometimes referred to as Guinea-Conakry, after its capital Conakry, to distinguish it from other territories in the eponymous region, such as Guinea-Bissau and Equatorial Guinea. Guinea has a population of 14 million and an area of 245,857 square kilometres (94,926 sq mi).

Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is 73,252 km² (28,283 sq mi). It has a tropical climate and environments ranging from savannas to rainforests. As of the 2023 census, Sierra Leone has a population of 8,460,512. Freetown is its capital and largest city.