Thúy-Loan Cathy was born in 1974. Thúy-Loan Cathy's father is Phúc-Cương and her mother is Ánh-Hằng. Her paternal grandfather was Mẫn and her paternal grandmother is Tảo Nghiêm-bá. She has a brother named Phúc-Khánh Michael. She has a half-brother named Peter.