Viwandani is an informal settlement (known locally as a "slum") in the city of Nairobi, Kenya. It is an electoral ward within the Makadara Constituency of Nairobi County.^[1] It borders on the Nairobi Industrial Area. The name "Viwandani" means "at the industrial zone" in Kiswahili.^[2] There are thirteen "villages" within the settlement: Jamaica, Kingstone, Lunga Lunga Centre, Lunga Lunga Donholm, Milimani, Paradise A, B, and C, Riverside, Sinai, Sinali Reli, Tetrapak, and Uchumi.^[2]

Viwandani is one of two informal settlements included in the Nairobi Urban Health and Demographic Surveillance System (NUHDSS) operated by the African Population and Health Research Center (APHRC) since 2002.^[3] The NUHDSS collects data on demographic events (births, deaths, and migrations), health outcomes (morbidity, cause of death through verbal autopsy, child vaccination, and nutrition) and socio-economic outcomes (marriage, education, livelihood, and housing characteristics). It is the source for numerous research publications indexed on the APHRC website.^[4] (The other informal settlement included in NUHDSS is Korogocho.)

2011 Nairobi pipeline fire (Occurred in or near SInai village within Viwandani)