what is the capital of kenya|Kenya : Manila Nairobi is the capital and largest city of Kenya. The name is derived from the Maasai phrase Enkare Nairobi, which translates to 'place of cool waters', a reference to the Nairobi River which flows through the city. The city proper had a population of 4,397,073 in the 2019 census. The city is commonly referred to as The Green City in the Sun. You need to enable JavaScript to run this app.