Kipsigis (or Kipsikii, Kipsikiis) is part of the Kenyan Kalenjin dialect cluster, commonly called Nandi . It is spoken mainly in the Kericho district of the Rift Valley Province in Kenya. The Kipsigis people are the most numerous tribe of the Kalenjin in Kenya, accounting for 60% of all Kalenjin speakers. Kipsigis is closely related to Nandi, Keiyo (Keyo, Elgeyo), South Tugen (Tuken), and Cherangany. The Kipsigis territory is bordered to the south and southeast by the Maasai.