Most people know Nairobi County as Kenya’s bustling capital- a city of business, culture, and movement but only few stop to ask where the name Nairobi actually comes from. 

The Root of the Name: What Nairobi County Actually Means

Nairobi is a Maasai word. The full phrase is Enkare Nyirobi, where Enkare means water and Nyirobi means cool or cold. Together, the phrase translates to place of cool waters, a name that perfectly described the cold, clear stream that ran through the area, known today as the Nairobi River.

The city itself was named after this river. Nairobi County did not receive its name from a colonial office or a foreign government. It received it from the land itself, and from the people who understood that land best.

Nairobi County Before Colonialism: The Pre-Colonial Roots

Long before 1899,  the year the British arrived, the land that maked up Nairobi County homed three distinct communities living alongside one another which are the Maasai, the Kikuyu, and the Akamba.

The Maasai people were pastoralists who moved their cattle across the highland plains, relying on the cool waters of the swamp and river to sustain their herds. They were the ones who gave the land its name. The Kikuyu people were agriculturalists who farmed the fertile highlands surrounding the area.  The Akamba or Kamba people were long distance traders who passed through the region, connecting communities from the coast to the interior of East Africa.

As recorded in the History of Nairobi, the area was essentially a swampland, not densely settled, but actively used and deeply known. 

The land sat at an elevation of about 1,795 metres above sea level, giving it a naturally temperate climate that is cool enough for comfortable living. This was a land the people understood intimately, long before any outsider arrived.

Colonial Influence: How Britain Turned a Maasai Waterhole Into a Capital

In 1895, Britain declared the region the East Africa Protectorate. Four years later, in 1899, the British began construction of the Uganda Railway. This one was an ambitious project linking the port of Mombasa on the Indian Ocean coast all the way to Kampala in present-day Uganda. The railway needed a midpoint depot, and Nairobi was the perfect place.

According to the official history published by the Nairobi City County Government, the site was selected for its central position between Mombasa and Kampala which made it suitable for residential settlement. 

The British did not rename the place but they adopted the Maasai name directly and Enkare Nyirobi was shortened and changed into Nairobi, a name colonial administrators found easy enough to use in official records.

By 1905, Nairobi had grown rapidly enough to replace Mombasa as the capital of British East Africa. By 1907, it was formally declared the capital of the British East Africa Protectorate. 

The Maasai and Kikuyu, who had lived on this land for generations, were steadily pushed out as the colonial city expanded. Their displacement fueled deep resentment that would later ignite into the Mau Mau Uprising of the 1950s, a fierce resistance movement against British colonial rule that ultimately accelerated Kenya’s path to independence. In 1919, Nairobi became a municipality. In 1950, it was granted city status by Royal Charter but through all of this, the name, rooted in Maasai language and meaning  never changed.

From Colony to County: Nairobi County Today

Kenya gained independence in 1963, and Nairobi became the capital of the new republic. Under Kenya’s 2010 constitution, it was formally constituted as Nairobi County, one of Kenya’s 47 counties. 

Today, more than 4.8 million people here. Nairobi county serves as East Africa’s financial hub the financial hub and hosts major international institutions including the United Nations Environment Programme (UNEP) and the United Nations Office at Nairobi.

It carries the nickname, “Green City under the Sun” – a place where a national park sits within city limits and glass towers rise above open grassland.  There are thousands more stories like this waiting for you. Keep watch on RichlyAfrican.org and expect more African origin stories.