Elon Musk, the founder of companies like Tesla and SpaceX, is known globally for his innovations in technology and his ambition to send humans to Mars. Beyond his business empire, he has also built a large and highly-publicized family. If you’re wondering how many children Elon Musk has, their names, who their mothers are, and his views on family, you’ve come to the right place.
As of early 2025, Elon Musk is the father of 14 children with four different women. He is also a vocal supporter of increasing birth rates globally, stating that a “collapsing birth rate is the biggest danger civilisation faces by far.” This article offers a detailed look at his expansive family tree.
Elon Musk’s 14 Children and Their Mothers
Elon Musk children, born between 2002 and 2025, are shared with four mothers: his first wife, Justine Wilson, the musician Grimes, Neuralink executive Shivon Zilis, and conservative author Ashley St. Clair.
Children with Justine Wilson (6 Children)
Elon Musk and Canadian author Justine Wilson were married from 2000 to 2008. They share six children, all conceived through in-vitro fertilization (IVF).
- Nevada Alexander Musk (Born 2002, Deceased): Nevada tragically passed away at only 10 weeks old due to Sudden Infant Death Syndrome (SIDS).
- Twins (Born 2004):
- Griffin Musk
- Vivian Jenna Wilson (formerly Xavier) – In 2022, she legally changed her name and gender, stating she no longer wishes to be related to her biological father.
- Triplets (Born 2006):
- Kai Musk
- Saxon Musk
- Damian Musk
The birth of the twins and triplets were all achieved through IVF, which Justine Wilson has discussed publicly.
Children with Grimes (3 Children)
Musician Grimes (Claire Boucher) and Elon Musk share three children. Their unconventional relationship and their children’s unique names have frequently made headlines.
- X Æ A-Xii Musk (“X”) (Born May 2020): His name, originally X Æ A-12, was later slightly modified to comply with state naming laws. Elon Musk has explained that ‘Æ’ is pronounced “Ash.”
- Exa Dark Sideræl Musk (“Y”) (Born December 2021): Born via surrogate, her arrival was kept secret for a few months.
- Techno Mechanicus (“Tau”) (Born June 2022): The existence of their third child was revealed in a 2023 biography of Musk.
Children with Shivon Zilis (4 Children)
Shivon Zilis, an executive at Musk’s company Neuralink, has welcomed four children with him. Their twins were born weeks before Grimes’ second child arrived.
- Twins (Born November 2021):
- Strider Musk
- Azure Musk
- Arcadia Musk (Born Early 2024): Musk confirmed the birth of this child a few months after her arrival, stating he was not keeping the birth a “secret.”
- Seldon Lycurgus Musk (Born Late 2024/Early 2025): Zilis announced the birth of their fourth child together in February 2025.
Child with Ashley St. Clair (1 Child)
- Romulus Musk (Born Fall 2024): Conservative author and influencer Ashley St. Clair announced in February 2025 that she and Musk had welcomed a son named Romulus a few months earlier.
| Mother | Child’s Name | Approximate Birth Year / Age | Status |
| Justine Wilson | Nevada Alexander | 2002 | Deceased (SIDS at 10 weeks) |
| Griffin | 2004 (21 years) | Twin | |
| Vivian Jenna Wilson | 2004 (21 years) | Twin | |
| Kai | 2006 (19 years) | Triplet | |
| Saxon | 2006 (19 years) | Triplet | |
| Damian | 2006 (19 years) | Triplet | |
| Grimes | X Æ A-Xii (“X”) | 2020 (5 years) | |
| Exa Dark Sideræl (“Y”) | 2021 (3 years) | Born via surrogate | |
| Techno Mechanicus (“Tau”) | 2022 (3 years) | ||
| Shivon Zilis | Strider | 2021 (4 years) | Twin |
| Azure | 2021 (4 years) | Twin | |
| Arcadia | 2024 (1 year) | ||
| Seldon Lycurgus | 2025 (Infant) | ||
| Ashley St. Clair | Romulus | 2024 (1 year) |
Elon Musk’s Public Stance on Fatherhood and Family
Elon Musk’s large family is tied to his deeply held pro-natalist views. He has repeatedly stressed his belief that declining birth rates pose a fundamental threat to global civilization.
The Underpopulation Crisis
Musk has often used his platform to champion having more children. In 2022, he tweeted, “Doing my best to help the underpopulation crisis. A collapsing birth rate is the biggest danger civilisation faces by far.” This philosophy drives his personal family choices and public commentary.
Sociologists like Brad Wilcox have weighed in on this, acknowledging Musk’s focus on boosting birth rates but cautioning that financial stability alone is not enough to ensure a child’s well-being. A stable family structure is considered essential for optimal outcomes.
Work-Life Balance and Parenting
When it comes to his day-to-day involvement, Musk has given candid interviews about his parenting style. He admits that his busy schedule, splitting time between companies like Tesla and SpaceX, limits his involvement when his children are very young.
- He once referred to babies as “just eating and pooping machines” and acknowledged that the mother has a “much bigger role” in the early months.
- Musk believes he becomes more involved as his children get older, saying he will participate more in activities like going to the park, intellectual debates, and teaching them about rockets and cars.
Navigating a Blended Family
The Musk family tree is undoubtedly complex, involving a blended co-parenting dynamic across multiple households. The mothers of his children have occasionally commented on the situation. For instance, Grimes once posted about the difficulty of maintaining a stable environment for their children while trying to “de-escalate the narrative” around their very public arrangement. Privacy has been a constant concern for all the mothers.
Frequently Asked Questions (FAQs)
Why are Elon Musk’s children’s names so unusual?
The unusual names, particularly those shared with Grimes, reflect the couple’s interest in space, technology, and futuristic concepts. For example, the name X Æ A-Xii is said to incorporate an “X” for an unknown variable, “Æ” for “Ash” (artificial intelligence or love), and “A-Xii” for a specific aircraft model.
Has one of Elon Musk’s children legally distanced themselves from him?
Yes, his daughter Vivian Jenna Wilson (formerly Xavier) filed a petition in 2022 to legally change her name and gender. In her filing, she stated that she no longer wished “to be related to [her] biological father in any way, shape or form.”
The Bottom Line
Elon Musk’s family life is as talked about as his business ventures. As the father of 14 children with four women, his personal choices reflect his public mission to combat a perceived global “underpopulation crisis.” While his innovative business life often takes center stage, his expanding, multi-faceted family continues to be a central part of his life story.
If you’d like to learn more about the public’s perception of Elon Musk’s family dynamics, you can watch this video:
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