What is Olivia Newton-John's half-sister's name?

Answer 1

Yes, Olivia has one daughter, Chloe Lattanzi (born in 1986), from her first marriage to Matt Lattanzi.

Answer 2

Yes, I am Olivia's half-sister, born in 1966 to our father's second wife, Valerie. Also my brother Toby is Olivia's half-brother. Thanks. Sarah Newton-John

Answer 3

Olivia Newton-John has a half sister named Sarah Newton-John, she also has a half brother named Toby Newton-John.