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. To the west, Gusii (a Bantu language) is spoken. To the north-east, other Kalenjin people are found, mainly the Nandi. East from the Kipsigis, in the Mau forests, live some Okiek speaking tribes.