Koin
Sub-prefecture and town
Koin Location in Guinea
Coordinates: 11°13′N 11°49′W / 11.217°N 11.817°W / 11.217; -11.817
Country	Guinea
Region	Labé Region
Prefecture	Tougué Prefecture
Area
• Total	0.964 km2 (0.372 sq mi)
• Land	0.964 km2 (0.372 sq mi)
Time zone	UTC+0 (GMT)

Koin (Pular: 𞤂𞤫𞤧-𞤯𞤢𞤤𞤭𞥅𞤪𞤫 𞤑𞤮𞤴𞤭𞤲) is a town and sub-prefecture in the Tougué Prefecture in the Labé Region of northern-central Guinea.^[1] The town has a total area of about 0,964 square kilometers or 0,372 square miles. Koin was one of the nine Diiwe (provinces) of the theocratic Kingdom of Fuuta Jaloo.

11°13′N 11°49′W / 11.217°N 11.817°W / 11.217; -11.817