Elon Musk is basically trying to single-handedly solve the "underpopulation crisis" he's always tweeting about. Honestly, keeping track of the billionaire’s family tree has become a full-time job for the internet. By early 2026, the count has hit 14 children with four different women. It’s a lot.
If you’re trying to remember what are the names of elon musk's children, you're not just looking for a list of names; you're looking for a decoding manual for science fiction, physics, and high-level gaming references.
The First Chapter: Justine Wilson and the "OG" Musk Kids
Before he was the "Technoking" or the owner of X, Elon Musk was married to Canadian author Justine Wilson. This is where the story begins, and it’s actually rooted in some pretty heavy personal tragedy.
- Nevada Alexander Musk: Their first son was born in 2002. Tragically, he passed away at only 10 weeks old from Sudden Infant Death Syndrome (SIDS).
- Griffin and Vivian Jenna Wilson: Born in 2004 via IVF. Vivian, who is now 21, famously filed to change her name and gender in 2022. She’s been pretty vocal about distancing herself from her father, even taking her mother’s maiden name.
- The Triplets (Kai, Saxon, and Damian): Born in 2006. They’re 20 now. Damian recently made headlines for being a hardcore vegetarian to lower his carbon footprint.
It’s wild to think that this first "set" of kids is already entering adulthood while the others are still in diapers.
The Grimes Era: X, Y, and Tau
Then things got... experimental. When Musk started dating the musician Grimes (Claire Boucher), the names took a sharp turn into the futuristic. This is usually what people are actually thinking about when they search for what are the names of elon musk's children because, let's be real, these names require a legend to read.
🔗 Read more: Nicole Kidman with bangs: Why the actress just brought back her most iconic look
X Æ A-Xii (X)
Born in 2020. This is the kid you always see sitting on Elon’s shoulders at rocket launches. The name is a mouthful: "X" is the unknown variable, "Æ" is the Elven spelling of AI, and "A-Xii" is a nod to the Archangel-12 aircraft. They call him "X" for short.
Exa Dark Sideræl (Y)
Born via surrogate in December 2021. "Exa" refers to the supercomputing term exaFLOPS. "Sideræl" is a more "elven" spelling of sidereal, which relates to the stars. Her nickname is "Y."
Techno Mechanicus (Tau)
The world didn't even know Tau existed until Walter Isaacson’s biography of Musk dropped in 2023. His name is Techno Mechanicus, but they call him Tau. He’s about three and a half now.
The Shivon Zilis Connection: The Neuralink Kids
While the world was focused on the Grimes drama, Musk was also expanding his family with Shivon Zilis, an executive at his company, Neuralink. This part of the family tree stayed quiet for a long time, but it’s grown rapidly.
💡 You might also like: Kate Middleton Astro Chart Explained: Why She Was Born for the Crown
Just recently in January 2026, Musk went viral again for explaining the specific inspirations behind the names of his twins with Zilis.
- Strider Sekhar Sirius: Musk recently confirmed that "Strider" is a tribute to Aragorn from Lord of the Rings. The middle name "Sekhar" honors the Nobel Prize-winning Indian-American astrophysicist Subrahmanyan Chandrasekhar.
- Comet Azure Astra: His daughter's name is a total gamer move. "Comet Azure" is actually the name of a legendary, high-damage spell in the video game Elden Ring.
- Arcadia: A daughter born in February 2024.
- Seldon Lycurgus: Announced in early 2025. Seldon is likely a nod to Hari Seldon from Isaac Asimov’s Foundation series, while Lycurgus was the legendary lawgiver of Sparta. Zilis described him on X as "built like a juggernaut."
The Surprise 14th Child: Romulus
The most recent addition that really caught everyone off guard involves conservative influencer Ashley St. Clair. In early 2025, it was revealed she had a son named Romulus with Musk in late 2024.
As of January 2026, this has turned into a bit of a legal mess. Reports indicate Musk filed for full custody of Romulus just this month, adding another layer of complexity to an already sprawling family dynamic.
Why Does This Even Matter?
You might think this is just celebrity gossip, but Musk’s "pronatalist" views make this a policy discussion for him. He genuinely believes that smart people have a "moral obligation" to have as many kids as possible to prevent civilizational collapse. He isn't just having kids; he's "doing his part," at least in his mind.
📖 Related: Ainsley Earhardt in Bikini: Why Fans Are Actually Searching for It
But it isn't all rocket science and philosophy. There’s a human side. Vivian’s public estrangement and the various custody battles with Grimes and St. Clair show that being one of the "Musk-eteers" isn't always a sci-fi dream. It’s complicated, messy, and very, very public.
Key takeaways for those keeping score:
- Total children: 14.
- Mothers: Justine Wilson, Grimes, Shivon Zilis, and Ashley St. Clair.
- Themes: Science fiction, astrophysics, ancient history, and video games.
If you're tracking these developments for a research project or just curious about the billionaire's personal philosophy, the best move is to follow the court filings and official social media announcements on X. The "secret" children tend to stay secret until a biography or a lawsuit brings them to light. Keep an eye on the official X accounts of Shivon Zilis and Grimes for the most direct updates on the younger group.