Athina Onassis net worth: Athina Onassis is the sole surviving heir to Aristotle Onassis shipping fortune who has a net worth of $1 billion. Her net worth is largely as a result of her famously wealthy family, but Onassis has made a name for herself as a competitive show jumper. Her career in the world of equestrian sport began as a teenager, when she was still known as Athina Roussel. Since then, she's attempted to explicitly reconnect with her Greek heritage by reinstating her Greek last name and learning the Greek language. Onassis has also had a notable personal life, having already been married and divorced even though she's only 26 years old.
She has also been involved in some legal problems involving her inheritance, which was locked up in a trust fund controlled by a board of directors at the Onassis Company. Even her net worth has been called into question by those in the media, with some asserting that she is not a "billionaire heiress" as she is often referred to. Still, Onassis continues to be considered a billionaire by most of those "in the know," and it's a sure thing that her financial future is secure barring some kind of unforeseen catastrophic economic collapse.