Ice Cube was born on June 15, 1969 in Los Angeles, in the South Central area, the son of Doris Jackson (née Benjamin), a hospital clerk and custodian, and Hosea Jackson, who worked as a groundskeeper at UCLA. According to a 2005 interview with Teenink, O'Shea's half-sister was murdered by her boyfriend in a murdersuicide when he was 12 years old. His cousin is Teren Delvon Jones, also known as Del tha Funkee Homosapien, who is a part of the rap group Hieroglyphics and who has also worked with Gorillaz; and Kam of rap group The Warzone. In his early teens, Ice Cube developed an interest in hip hop music, and began writing raps in Taft High School's keyboarding class.
He attended the Phoenix Institute of Technology in the fall of 1987, and studied architectural drafting.