Kwahu is a region in south-central Ghana, or in the eastern region of Ghana, on the west shore of Lake Volta. Shares the region with the Akyems, Krobos, and a small sect of Ewes. There are two common spellings of the name, Kwawu and Kwahu. The "w" spelling is the official spelling from the African Studies Centre, University of Ghana, and more resembles the pronunciation. The "h" was put in by Swiss missionaries from Basel, who added the "h" to ensure that Kwa, the first syllable, was not pronounced as "eh." The "h" is not separately pronounced in the name.
The term Kwahu also refers to the variant of Akan language spoken in this region and to the Kwahu people who come from the region, there are about 65.000 Kwahus. Kwahu are originally Akan people.
The name derives from its myths of origin, "The slave (awa) died (wu)," which was based on an ancient prophecy that a slave would die so the wandering tribe of Akan would know where to settle. The myth was part of the historical stories of the Agona matriclan, the first paramount lineage of Kwawu, and was later adopted by the Bretuao-Tena matriclan (Twidan) who later replaced them.