From a tragic loss to a sprawling constellation of uniquely named children, the family tree of Elon Musk has become a subject of global fascination that rivals his space-bound rockets. As of 2026, the tech mogul is known to be the father of 14 children with four different women, a number he has grown with a fervor tied to his public warnings about a “population collapse” threatening civilization. While his business ventures aim to secure humanity’s future in the stars, Musk has stated he is “doing [his] best to help the underpopulation crisis” here on Earth, a philosophy that has directly shaped his large and unconventional family.
The public’s curiosity is often piqued not just by the sheer number of his kids, but by their extraordinary names, which blend sci-fi references, AI terminology, and mythological figures. From the familiar to the futuristic, each child’s name provides a glimpse into Musk’s eclectic interests, while their mothers—ranging from his first wife and a musician to a Neuralink executive—each bring their own dynamic to his complex personal life. What follows is a detailed breakdown of his children, their names, ages, and the mothers who share this headline-making legacy.
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The First Family: A Foundation Forged in IVF and Loss
Elon Musk’s journey into fatherhood began with his first wife, Canadian author Justine Wilson, to whom he was married from 2000 to 2008. Their firstborn, Nevada Alexander Musk, was born in 2002 but tragically passed away from sudden infant death syndrome (SIDS) at just 10 weeks old, a devastating loss that shaped their subsequent family plans.
Turning to IVF, the couple welcomed twins in April 2004: Griffin Musk and Vivian Jenna Wilson (born Xavier Musk). Vivian, who came out as transgender in 2020, legally changed her name and gender in 2022 to distance herself from her father, publicly stating she no longer wished to be related to him “in any way, shape or form”. Justine Wilson later gave birth to triplets in January 2006: Kai, Saxon, and Damian Musk, who have largely remained out of the public spotlight.
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The Modern Cohort: Sci-Fi Names and a Growing Dynasty
After his marriage to Wilson ended in 2008, Elon Musk’s next high-profile relationship was with musician Grimes (Claire Boucher), with whom he shares three children who have become famous for their futuristic monikers. Their son X Æ A-Xii Musk (often called “X”) was born in May 2020. A daughter, Exa Dark Sideræl Musk (nicknamed “Y”), was born via surrogate in December 2021, followed by a son, Techno Mechanicus (“Tau”), whose birth was kept private until 2023.
Simultaneously, Musk had been quietly building a family with Shivon Zilis, a high-ranking executive at his company Neuralink. In November 2021, they welcomed twins Strider and Azure Musk, and later a daughter, Arcadia Musk, in early 2024. Their fourth child, a son named Seldon Lycurgus Musk, was announced in February 2025, drawing its name from the ‘Foundation’ series by Isaac Asimov.
Most recently, in late 2024, conservative author Ashley St. Clair claimed to have had a child with Musk, a son reportedly named Romulus after the mythical founder of Rome, whose paternity was confirmed by a legal test. With kids ranging from college-age adults to newborns, the Musk family tree continues to expand, capturing headlines as each new branch grows.
