Elizabeth Chase Olsen was born on February 16, 1989, in Sherman Oaks, California. Her mother, Jarnie, is a former dancer, while her father, Dave, is a real estate agent. She is the younger sister of twins Mary-Kate and Ashley Olsen, who became television and film actresses as children. Olsen also has an older brother, a younger half-brother, and a younger half-sister. Her parents divorced in 1996.