Honestly, trying to keep up with Elon Musk’s family tree is like trying to track a SpaceX booster on reentry. It’s fast, a bit chaotic, and every time you think you’ve seen the final landing, another one appears on the horizon. If you’re asking how many kids Elon Musk has, the number as of early 2026 stands at 14.
Fourteen.
That is not a typo. The Tesla CEO has been very vocal about his "pro-natalist" views—basically the belief that civilization will collapse if smart people don't start having way more babies. He isn't just tweeting about it; he’s living it. His children are spread across four different mothers, ranging from college-aged adults to infants born in the last year.
It’s a lot to untangle. You’ve got names that sound like math equations and others that sound like Roman emperors. Here is the actual, updated breakdown of the Musk dynasty.
The First Chapter: Justine Wilson
Musk’s journey into fatherhood started with his first wife, Canadian author Justine Wilson. They met at Queen’s University and married in 2000. Their story is actually pretty heartbreaking at the start.
Their first son, Nevada Alexander Musk, was born in 2002. Tragically, he passed away from Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. It’s a loss Justine has written about movingly, and it clearly left a mark on how the family grew afterward.
They turned to IVF for their next children. In 2004, they welcomed twins:
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- Griffin Musk
- Vivian Jenna Wilson Vivian made headlines a few years back when she legally changed her name and gender, explicitly stating she no longer wanted to be related to her father in any way. She uses her mother’s maiden name now.
Then, in 2006, the couple had triplets:
- Kai
- Saxon
- Damian
That brought the count to six kids with Justine before they divorced in 2008. These older boys are mostly out of the spotlight, though they’ve occasionally been spotted at SpaceX events or at the Ad Astra school Musk founded for his kids.
The Grimes Era: X, Y, and Tao
After a couple of marriages to actress Talulah Riley (which resulted in zero children), Musk started dating the musician Grimes in 2018. This is when the naming conventions went... off the rails.
In May 2020, they had a son. His name was originally X Æ A-12, but California law doesn't allow numbers in names. So, they swapped it to X Æ A-Xii. Everyone just calls him "X." You've probably seen him sitting on Elon’s shoulders during rocket launches or political rallies.
Then came a daughter in December 2021, born via surrogate:
- Exa Dark Sideræl Musk (known as "Y")
And the world didn't even know about the third child until Walter Isaacson’s biography of Musk dropped in 2023. They had a second son named:
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- Techno Mechanicus (nicknamed "Tao")
The Shivon Zilis "Secret" Expansion
While things were "fluid" with Grimes, Musk was also having children with Shivon Zilis, an executive at his brain-chip company, Neuralink. This part of the timeline is confusing because the births actually overlapped.
In November 2021—just weeks before his daughter with Grimes was born—Zilis gave birth to twins:
- Strider Sekhar Sirius
- Azure Astra Alice
Musk didn't confirm these kids existed until court documents surfaced a year later. But they didn't stop there. In February 2024, they had a daughter named Arcadia. And most recently, in early 2025, Zilis announced the birth of their fourth child together, a son named Seldon Lycurgus.
The Newest Addition: Ashley St. Clair
Just when everyone thought 13 was the final number, conservative influencer Ashley St. Clair dropped a bombshell in early 2025. She revealed that she had welcomed a son with Musk in late 2024.
The boy is named Romulus Musk.
If you’re keeping score, that brings the total to 14.
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- Justine Wilson: 6 children (1 deceased)
- Grimes: 3 children
- Shivon Zilis: 4 children
- Ashley St. Clair: 1 child
Why So Many Kids?
Musk doesn't view this as a hobby or a "celebrity quirk." He is genuinely terrified of "population collapse." He’s mentioned multiple times on X (formerly Twitter) that the birth rate is a much bigger threat to the world than global warming.
He basically thinks that if people with high IQs and resources don't have children, the collective consciousness of humanity will shrink. He’s even encouraged his followers—and his employees—to have at least three kids.
"I'm doing my part," he often jokes, though for the women involved and the 14 children navigating this massive, non-traditional family structure, it's likely a lot more complicated than a punchline.
What This Means for the Future
With a net worth that fluctuates by billions daily, child support isn't the issue. The real question is the legacy. Musk is building a literal "legion," as some critics call it, potentially training a generation to carry on his goals for Mars and neural integration.
If you’re trying to keep track of how many kids Elon Musk has, the best advice is to check the news every six months. At the rate he’s going, the "Musk 14" might be the "Musk 15" before the year is out.
Actionable Insight for You:
If you're following the Musk family saga for its impact on his businesses, keep an eye on how he integrates his older children into his companies. We’ve already seen X at the White House and SpaceX; the succession plan for a $2 trillion empire usually starts at home. Pay attention to which of the adult children, like Griffin or the triplets, begin taking roles within the "Muskonomy" (Tesla, X, SpaceX), as that will be the first real sign of how he intends to manage his massive estate.