Kericho is the home town of the Kipsigis people, who are a part of the Kalenjin people. The Kipsigis and the Kalenjin have developed many excellent professional athletes. They include Kipchoge Keino, one of many athletes that have brought great victory during World Athletic Competitions.
A favorite local meal is Maize meal(kimyet), enjoyed with vegetables and beef. An almost constant accompaniment is a glass of sour milk locally known as Mursik. Tea is also widely consumed in the district, taken three times a day; at dawn, at mid-morning and at four o'clock. Tea after the evening meal is also common.
The origin of the town's name has not been established. One theory is that it was home to the region's first public hospital, built by the British at the dawn of the 20th century. Medicine in the local Kipsigis language is referred to as Kerichek. Another theory is that the town was originally home of a medicine man named KipKerich
