Wangari is a name of Kikuyu origin that may refer to:
Wangari Maathai (1940–2011), Kenyan environmental and political activist Catherine Wangari Wainaina (born 1985), Kenyan beauty pageant contestant Ruth Wangari Mwaniki (born 1963 or 1964), Kenyan politician Margaret Wangari Muriuki (born 1986), Kenyan middle- and long-distance runner Martha Wangari Karua (born 1957), Kenyan politician and former Minister of Justice Meriem Wangari (born 1979), Kenyan half marathon runner Wangari wa Nyatetu-Waigwa (1950–2024), Kenyan-American college professor