Koibatek District was a former administrative district in the Rift Valley Province of Kenya. Its capital town was Eldama Ravine. The district had a population of 138,163 and an area of 2,306 km² [1].
Koibatek district amalgamated into Baringo County in 2010.
The district had two electoral constituencies[5]:
Coordinates: 0°03′00″N 35°43′00″E / 0.05°N 35.7167°E