Simone Biles's adoptive mother's first name is Nellie. Nellie Cayetano Biles and her husband, Ron Biles, began caring for Simone and her younger sister, Adria, in 2000 and formally adopted both girls in 2003.
Nellie is Ron Biles's second wife and Simone's maternal grandfather's spouse. She helped provide the stable home in Spring, Texas, where Simone grew up after spending time in foster care. Biles has often credited her family with giving her the support and security needed to pursue elite gymnastics.
Nellie is easy to confuse with other important names in Biles's story. Shanon Biles is Simone's birth mother, while Adria is her younger sister. Cecile Canqueteau-Landi, another name associated with Biles, is a gymnastics coach rather than a family member.