The 14 'Musk-eteers': A Complete, Chronological List Of Elon Musk's Children, Their Mothers, And Unique Names

As of late 2025, the question of "how many children does Elon Musk have" has a definitive, and surprising, answer: 14. The billionaire entrepreneur, CEO of Tesla, SpaceX, and X (formerly Twitter), has consistently stated his belief in combating underpopulation, and his personal life reflects this mission, with his family growing rapidly in recent years. This updated, chronological list provides the most current information available today, including the names of his most recently welcomed children, Romulus and Seldon Lycurgus. This in-depth look at the Musk family is essential for understanding the man behind the world's most influential companies, as his commitment to family and his unique naming conventions are as much a part of his public persona as his space-faring ambitions. The recent births have cemented his status as a father of a large, modern family, sharing children with four different women.

Elon Reeve Musk: A Brief Biographical Profile

To truly appreciate the scope of the Musk family, one must first understand the man at the center of it all. Elon Musk is not just a tech mogul; he is a South African-born American entrepreneur whose influence spans multiple industries, from electric vehicles to space exploration.

• Full Name: Elon Reeve Musk
• Born: June 28, 1971
• Birthplace: Pretoria, South Africa
• Citizenship: South Africa, Canada, United States
• Education: University of Pennsylvania (B.A. in Physics, B.S. in Economics)
• Key Companies Founded/Led: Tesla (CEO), SpaceX (CEO/CTO), X (formerly Twitter, Owner/CTO), The Boring Company, Neuralink, xAI.
• Stated Mission: To accelerate the world's transition to sustainable energy (Tesla) and to make humanity multi-planetary (SpaceX).
• Net Worth: Consistently ranked among the wealthiest people in the world (figures fluctuate, but often exceeding $200 billion).

The 14 Musk-eteers: A Chronological List of All Children and Their Mothers

Elon Musk has welcomed 14 children with four different partners over two decades, though one child tragically passed away in infancy. This complete list, updated for 2025, details the names, birth years, and the mothers of the Musk family.

Children with Justine Wilson (6 Children)

Musk’s first wife, Canadian author Justine Wilson, is the mother of his first six children. The couple married in 2000 and divorced in 2008.

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1. Nevada Alexander Musk (2002): Musk's first child, Nevada, tragically died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old.
2. Griffin Musk (2004): Twin son, born via IVF.
3. Vivian Jenna Wilson (2004): Twin daughter, born via IVF. Vivian legally changed her name in 2022 to reflect her gender identity and to distance herself from her father.
4. Kai Musk (2006): Triplet son, born via IVF.
5. Saxon Musk (2006): Triplet son, born via IVF.
6. Damian Musk (2006): Triplet son, born via IVF.

Children with Grimes (Claire Boucher) (3 Children)

Musk’s relationship with Canadian musician Grimes, whose real name is Claire Boucher, yielded three children, all with famously unique, almost technological names.

7. X Æ A-Xii (X) (Born May 2020): The couple's first child, whose name is pronounced "Ex Ash A Twelve."
8. Exa Dark Sideræl (Y) (Born December 2021): Known as 'Y,' this daughter was born via surrogate, a fact that was kept private until a later interview.
9. Techno Mechanicus (Tau) (Born June 2022): Known as 'Tau,' the birth of this third child with Grimes was revealed in Walter Isaacson's 2023 biography of Musk, having been kept secret from the public.

The Most Recent Additions: The Newest Musk Offspring (2024–2025)

The latest wave of births has brought the total count to 14, introducing two new mothers to the family tree: Neuralink executive Shivon Zilis and author/influencer Ashley St. Clair. This rapid expansion in 2024 and 2025 is what makes the "Elon Musk family" a central topic in current news.

Children with Shivon Zilis (4 Children)

Shivon Zilis is a top executive at Musk's company Neuralink. The pair first welcomed twins in 2021, and have since added two more children to their family, bringing Zilis's total to four children with the tech mogul.

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9. Strider Zilis Musk (Late 2021): Twin son, born just weeks before the arrival of Exa Dark Sideræl (Y).
10. Azure Zilis Musk (Late 2021): Twin daughter.
11. Arcadia Zilis Musk (Born February 2024): This daughter's birth was confirmed in 2024, adding another child to the family.
12. Seldon Lycurgus (Born 2025): The most recently confirmed child, Seldon Lycurgus, is the fourth child with Zilis and the 14th child overall for Elon Musk. The name "Seldon" is believed to be a reference to Hari Seldon from Isaac Asimov's Foundation series, a known inspiration for Musk.

Children with Ashley St. Clair (1 Child)

In a surprising revelation, conservative author and influencer Ashley St. Clair announced in February 2025 that she had welcomed a child with Elon Musk in September 2024, further expanding the Musk family.

13. Romulus (Born September 2024): Named after the mythical founder of Rome, the birth of Romulus was a highly publicized event that confirmed the family’s rapid growth.

The Philosophy Behind the Growing Musk Family

The sheer number of Elon Musk's children—14 in total—is not merely a matter of personal choice; it is tied to his public-facing philosophy on global demographic trends. Musk has repeatedly expressed concern over what he calls "underpopulation" and a declining birth rate, which he views as one of the greatest threats to human civilization.

This belief forms the topical authority for his large family. He has stated that "smart people should have more babies" and has positioned his own life as an example of this principle. The growing number of Musk offspring is a direct, tangible expression of his desire to see the global population not just sustained, but thrive.

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Unique Naming Conventions and Cultural Entities

A notable aspect of the Musk children is the highly unusual and complex names given to the children he shares with Grimes. Names like X Æ A-Xii and Exa Dark Sideræl are not just attention-grabbing; they are steeped in technological and cultural entities.

The name X Æ A-Xii, for instance, includes a reference to the Lockheed SR-71 Blackbird reconnaissance aircraft (A-12). Similarly, Exa Dark Sideræl references exa- (a trillion trillion) and Sideræl (a more elven spelling of sidereal, meaning true time of the universe). The newest names, Romulus and Seldon Lycurgus, continue this trend of referencing historical and science fiction entities, linking his family directly to grand narratives and his own intellectual interests.

The names of the children he shares with Shivon Zilis—Strider, Azure, Arcadia, and Seldon Lycurgus—are also unique, moving away from traditional names and aligning with a more futuristic or mythological aesthetic. This deliberate choice highlights the family's place at the intersection of technology, philosophy, and modern celebrity culture.