Twan River District
Twan River District is one of 17 districts of Nimba County, Liberia. It lies in the central east of the county, bordering Côte d'Ivoire. Towns within the district include Garplay, Kparplay, and Senlay.
The eponymous river flows south through the centre of the district before joining the Nuon River close to the district's southernmost point.
As of 2008, the population of Twan River District was 37,479.