The Tachoni (Batachoni) are closely related to the Bukusu and share origins around Mount Elgon. Their founding ancestor Mutachoni is said to have split from the Bukusu lineage after a dispute. The Tachoni migrated westward and settled in present-day Lugari and Turbo areas of Kakamega and Uasin Gishu counties. They share the circumcision tradition with the Bukusu and maintain close cultural and clan ties with them.