Olivia Alice Simmons (born December 17, 1991) is an Australian former college basketball player who played for the Arizona State Sun Devils women's basketball team of Pac-12 Conference. She is the older sister of current NBA player Ben Simmons.
Born in Melbourne suburb of Fitzroy, Simmons is daughter of David and Julie Simmons and has a younger brother Ben. Through her mother's first marriage, she has two older half-sisters Melissa and Emily; and two older half-brothers Liam and Sean. Even though the six children have two different biological fathers, and their age span is 15 years (Melissa to Ben), they were raised as if they were full siblings. Her father played college basketball for Oklahoma City University before turning professional with the Melbourne Tigers in Australia's National Basketball League in 1989.
Simmons attended Box Hill Senior Secondary College before moving to the United States to attend Arizona State University. As a senior, she helped lead Box Hill Secondary College to the Australian Schools Championships title. Serving as team captain, Simmons averaged 16.0 points and 5.3 rebounds per game during the Australian Schools Tournament, scoring 22 points in the championship game to help Box Hill defeat John Paul College 75-51. She played basketball for Arizona State University.
Simmons' brother Liam is an assistant coach for the Southwest Baptist Bearcats men's basketball team. Her sister Emily, a former member of the Washington State Universitywomen's rowing team who has worked for Klutch Sports since 2014, is the wife of NFL player Michael Bush and younger brother, Ben, played college basketball for Louisiana State University (LSU), and was selected with the first overall pick in the 2016 NBA draft by the Philadelphia 76ers. A cousin of Simmons, who had attended the 2016 NBA draft, was killed in a hit-and-run during the early hours of 25 June 2016 in New Jersey. She gave birth to her daughter, Savannah Alice Simmons, on June 19, 2018.