Kajiado is a town in the Rift Valley Province, Kenya. The town is located south of Nairobi, along the Nairobi – Arusha highway. Kajiado has an urban population of 8128 (1999 census) Local people are predominantly of the Maasai tribe.
Kajiado is headquarters to the Kajiado District.
The name "Kajiado" comes from the word "Orkejuado." Which means "The Long River" in Maasai language. The seasonal river named after the town runs west of the town.
The original name for Kajiado was "Olopurupurana", which means "a round elevation."