As one of the most talked-about figures, Athina Onassis has built a significant fortune. Our team analyzed the latest data to provide a clear picture of their income.

What is Athina Onassis' Net Worth?

Athina began riding horses during her childhood, and in 2001, she was the runner-up at an event in Jerez, Spain. She has participated in the Global Champions Tour as a competitive show jumper, and she has also served as a patroness of the competition. She established the Athina Onassis International Horse Show in São Paulo in 2007, and it moved to Rio de Janeiro two years later and to Saint-Tropez in 2014. In 2012, Onassis fell off her horse and suffered a spinal injury, but the following year she competed in the European Show Jumping Championships. She also took part in the 2014 World Championships. Athina and her former husband, Álvaro de Miranda Neto, co-owned AD Sport Horses, a Belgium-based business dedicated to breeding and training horses.

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.

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Athina Onassis is a French-Greek heiress and equestrian who has a net worth of $1 billion. Athina Onassis is the sole surviving heir to theAristotle Onassisshipping fortune, and her net worth is largely 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, Athina has attempted to reconnect with her Greek heritage by reinstating her Greek last name and learning the Greek language.

Athina began a relationship with Brazilian show jumper/Olympic medalist Álvaro de Miranda Neto in 2003, and she bought an $8.6 million, 10,600 square foot home in São Paulo. The couple married on December 3, 2005, and they legally separated in 2016 after allegations arose that Álvaro was involved with another woman for eight years of their 11-year marriage. Miranda reportedly asked for 11 million euros in the divorce (based on their prenuptial agreement) and "350,000 euros for alimony, payment for their joint ventures, as well as custody of their horses and properties with a total value of 400,000,000 dollars." The divorce was finalized in late 2017, with Álvaro getting "almost nothing." During the marriage, Onassis was stepmother to Viviane, Miranda's daughter with model/actress Cibele Dorsa, and Fernando, Dorsa's son from a previous relationship. Cibele had agreed to let her children live with Athina and Álvaro so they could have a "very simple and healthy lifestyle." After Cibele's fiancé, Gilberto Scarpa, died in an apparent suicide in early 2011, Dorsa posted on social media, "To live without my two children and without the love of my life has wounded my whole self." Tragically, in March 2011, Cibele jumped to her death from a window of her São Paulo apartment building.

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Athina Onassis was born Athina Hélène Onassis on January 29, 1985, in Neuilly-sur-Seine, France. Her mother, Christina, was a Greek heiress, socialite, and businesswoman, and her father, Thierry Roussel, is a French pharmaceutical heir. Christina and Thierry divorced in 1987 after Roussel fathered two children with model Marianne "Gaby" Landhage. The following year, Christina sadly passed away from pulmonary edema when Athina was just 3 years old. Onassis was then raised by her father and Landhage, who he married in 1990. Athina attended school in Lussy-sur-Morges, Switzerland and took a preparatory course in Brussels, Belgium, then in 2003, she passed her baccalauréat exam. Onassis has a half-brother, Erik, and two half-sisters, Sandrine and Johanna. Her grandfather, Greek shipping magnate Aristotle Onassis, was one of the richest men in the world; he was married to Jacqueline Kennedy at the time of his death, and she reportedly received $26 million from his estate.

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Ultimately, Athina Onassis's financial journey is a testament to their success.

Disclaimer: All net worth figures are estimates based on public data.