Elon Musk has a lot of kids. Like, a lot.
As of early 2026, the count stands at 14 known children. If you’re trying to keep track of the Elon Musk kids names, you’re basically looking at a mix of high-fantasy novels, aerospace engineering manuals, and ancient Roman history. It’s a lot to take in.
Most people know "X," the kid who basically lived on Musk’s shoulders during the Twitter takeover. But the family tree is much wider and weirder than one toddler with a futuristic nickname. It spans over two decades and involves four different women. Honestly, the naming conventions alone tell you everything you need to know about Musk’s headspace at any given time.
The First Generation: Justine Wilson
Before the rockets and the red pills, there was Justine Wilson. She was Musk's first wife. Together, they had six children, though the first story is a heavy one.
In 2002, their first son, Nevada Alexander Musk, was born. Tragically, he passed away from Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. It’s a piece of Musk’s history that he rarely talks about, though it clearly shaped his later obsession with birth rates and "populating the universe."
After Nevada, the couple turned to IVF. They had five more kids in quick succession:
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- Griffin Musk and Vivian Jenna Wilson (Twins, born 2004)
- Kai, Saxon, and Damian Musk (Triplets, born 2006)
You'll notice Vivian doesn't share the Musk last name. Born Xavier, she legally changed her name and gender in 2022. She’s been very vocal about wanting nothing to do with her father. It's a rift that Musk has blamed on the "woke mind virus," while Vivian has basically said she wants to exist as her own person, far away from the Tesla shadow.
The Grimes Era: Cyberpunk Names and Pronunciation Guides
When Musk started dating the musician Grimes (Claire Boucher), the names took a sharp turn into the "is this a typo?" territory. This is where the Elon Musk kids names became a global meme.
X Æ A-Xii was the first. Born in May 2020, his name was originally X Æ A-12, but California law doesn't allow numbers in names. They swapped it to Roman numerals. Musk told Joe Rogan it’s pronounced "X Ash A-Twelve." X is for the unknown variable. Æ is the elven spelling of AI. A-12 is a nod to the Archangel-12, the precursor to the SR-71 Blackbird. Simple, right?
Then came the daughter, Exa Dark Sideræl Musk, born via surrogate in 2021. They call her "Y."
- Exa refers to the computing term exaFLOPS.
- Dark is for dark matter, the "beautiful mystery" of the universe.
- Sideræl (pronounced sigh-deer-ee-el) is a more "elven" take on sidereal, which relates to the stars.
The third child with Grimes, Techno Mechanicus, was a secret for a long time. He goes by "Tau." His existence only came to light when Walter Isaacson’s biography dropped in 2023.
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The Neuralink Connection: Shivon Zilis
While things were "fluid" with Grimes, Musk was also having children with Shivon Zilis, an executive at his company Neuralink. This part of the timeline is messy.
Zilis and Musk have four children together. The first two, twins Strider Sekhar and Comet Azure, were born in November 2021—just weeks before his daughter with Grimes was born.
Just this month, in January 2026, Musk hopped on X to explain these names. Strider is a shout-out to Aragorn from Lord of the Rings. Sekhar is a tribute to Subrahmanyan Chandrasekhar, the Nobel-winning astrophysicist. As for Comet Azure? It’s literally a high-level spell from the video game Elden Ring. He’s a gamer. What did you expect?
Their third child, Arcadia Musk, arrived in February 2024. The fourth, Seldon Lycurgus Musk, was born around early 2025. Seldon is likely a nod to Hari Seldon from Isaac Asimov's Foundation series. Musk lives for sci-fi tropes.
The Newest Addition: Romulus
The most recent drama involves Romulus Musk, born in September 2024 to conservative influencer Ashley St. Clair.
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This one has been messy. For a while, the paternity was a "he-said, she-said" situation on social media. But by late 2025, a paternity test confirmed Musk is the father. As of this week (January 2026), Musk has publicly stated he is seeking full custody of Romulus.
He claims he’s worried about St. Clair’s shifting views on gender identity. It’s a wild escalation, even by Musk standards. Romulus, of course, is the legendary founder of Rome. It fits Musk’s "building a legacy" vibe perfectly.
Why These Names Actually Matter
It’s easy to laugh at names like Techno Mechanicus, but there’s a logic here. Musk treats his children like part of a "legion." He’s obsessed with the idea that smart people aren't having enough kids. To him, these children aren't just family; they are a hedge against civilizational collapse.
Elon Musk kids names are basically a map of his obsessions:
- Space and Physics: (A-12, Sekhar, Sideræl)
- Science Fiction/Fantasy: (Strider, Seldon, Æ)
- Computing/Tech: (Exa, Techno, AI)
- Classical History: (Romulus, Lycurgus)
If you're looking for a takeaway, it's this: don't expect the next one to be named "John." Whether it's through IVF or surrogacy, Musk is building a very specific kind of dynasty.
If you want to keep up with the ever-changing legal battles over custody or the next surprise birth announcement, keep an eye on court filings in Texas and New York. That’s usually where the truth comes out before it hits Musk’s X feed. You can also track the flight patterns of his private jet; it usually tells you which "family hub" he’s visiting.