Athina Onassis Net Worth (Updated 2026).

Athina Onassis, born in 1985, is the only child of Christina Onassis, the daughter of the legendary shipping magnate Aristotle Onassis. Growing up in a world of immense wealth and privilege, Athina’s life was far from ordinary. She spent her early years in Greece, France, and Switzerland, receiving a private education that would set the stage for her future endeavors.

Athina’s journey into the public eye began in her late teens when she started competing in show jumping, a sport she had been passionate about since childhood. She honed her skills under the tutelage of some of the world’s top trainers, and her natural talent and dedication quickly propelled her to international fame. Her stunning good looks, combined with her athletic prowess, made her a regular fixture in gossip columns and fashion magazines, earning her the title of “The World’s Richest Girl” by Forbes in 2007.

Athina Onassis’ Current Net Worth (2025)

Athina Onassis, the heiress to the Onassis shipping fortune, has an estimated net worth of $1 billion as of 2025. This figure takes into account her inherited wealth, investments, and other assets.

Career

Athina Onassis is a philanthropist and equestrian, rather than a businesswoman in the traditional sense. She has competed in international show jumping events and is a patron of various charitable causes, including horse welfare and children’s education.

Other Ventures

Onassis is involved in several philanthropic ventures. She founded the Athina Onassis Horse Show in 2004, which raises funds for horse welfare charities. She also supports the Onassis Foundation, established by her grandfather Aristotle Onassis, which promotes cultural exchange and education.

Assets

Onassis’ assets include a significant stake in the Onassis Foundation, as well as real estate in Greece and other parts of Europe. She also owns a collection of high-value art and jewelry, and a stable of show jumping horses.

Annual Income

As a philanthropist and heiress, Athina Onassis’ annual income is not publicly disclosed. However, it is believed to be substantial, deriving from her investments, inheritance, and the income generated by her assets.

Frequently Asked Questions about  Athina Onassis

**Q: What is Athina Onassis’ net worth?**

Athina Onassis’ net worth is estimated to be around $1 billion.

**Q: How did Athina Onassis inherit her wealth?**

Athina Onassis is the granddaughter of Aristotle Onassis, a Greek shipping magnate. She inherited her wealth from her father, Alexander Onassis, who died in a plane crash in 1973. Her mother, Christina Onassis, also left her a substantial inheritance when she died in 1988.

**Q: What is Athina Onassis’ background?**

Athina Onassis was born in 1985 in Geneva, Switzerland. She is the only child of Alexander Onassis and his second wife, Christina Onassis. She was raised in Switzerland and later moved to the United States to attend college.

**Q: What is Athina Onassis’ educational background?**

Athina Onassis graduated from the University of Pennsylvania with a degree in Art History in 2007. She also attended the Sotheby’s Institute of Art in London.

**Q: What is Athina Onassis’ involvement in philanthropy?**

Athina Onassis is involved in various philanthropic activities. She has donated to causes such as education, health, and the arts. She is also a trustee of the Alexander S. Onassis Public Benefit Foundation, which was established by her grandfather.

**Q: What is Athina Onassis’ involvement in the equestrian world?**

Athina Onassis is a competitive show jumper. She has competed in several international events, including the Olympics. She also owns a horse farm in Wellington, Florida.

**Q: Is Athina Onassis married?**

As of now, Athina Onassis is not married.

**Q: What is Athina Onassis’ relationship with her family?**

Athina Onassis has spoken publicly about her close relationship with her mother, Christina Onassis. She has also mentioned that she is proud of her family’s legacy and the values they instilled in her.

**Q: What is Athina Onassis’ involvement in business?**

While Athina Onassis has inherited a significant fortune, she is not actively involved in the business world. She has mentioned that she prefers to focus on her philanthropic and equestrian pursuits.

**Q: Where does Athina Onassis live?**

Athina Onassis divides her time between her homes in Switzerland, Florida, and New York. She also spends time at her family’s estate on the island of Skorpios in Greece.