Zeituni Onyango (/zeɪˈtʌni ɔːˈnjɑːŋɡoʊ/ zay-TUN-ee aw-NYAHNG-goh; May 29, 1952 – April 7, 2014) was known as the half-aunt of United States President Barack Obama; she was born into the Luo tribe in Kenya. Born during the British rule of the Protectorate of Kenya, Onyango was the half-sister of Barack Obama, Sr., father to the president. The younger Obama refers to her as "Aunti Zeituni" in his 1995 memoir, Dreams from My Father.