Does Elon Musk Have Any Siblings? The Truth About the Other Musk Entrepreneurs

Does Elon Musk Have Any Siblings? The Truth About the Other Musk Entrepreneurs

When you hear the name Musk, your brain probably goes straight to rockets, electric cars, or some controversial post on X. It’s almost like Elon is a singular entity, a lone force of nature. But honestly? He’s actually the oldest of three.

Does Elon Musk have any siblings? Yeah, he does. And they aren't just living in his shadow. While Elon was busy trying to colonize Mars, his brother Kimbal was busy trying to revolutionize how Americans eat, and his sister Tosca was building a literal empire out of romance novels.

It’s a weird family dynamic, for sure. You’ve got the tech mogul, the cowboy-hat-wearing chef, and the filmmaker. They grew up in South Africa, survived a pretty intense childhood, and eventually followed each other to Canada and the U.S.

Let's break down who these people actually are.

The Middle Sibling: Kimbal Musk and the "Food Revolution"

Kimbal Musk is the one you’ll usually see wearing a signature cowboy hat. He’s about a year younger than Elon. If you think Elon is the only one with business chops, you’d be wrong. Kimbal was right there at the start.

Back in 1995, the two brothers co-founded Zip2. It was basically an online city guide—sort of a precursor to Google Maps and Yelp. They eventually sold it to Compaq for a cool $307 million. That was the seed money for everything else.

But after the tech exit, Kimbal took a hard left turn.

He didn't want to code anymore. He moved to New York and enrolled in the International Culinary Center. Imagine being a millionaire and deciding your next move is peeling potatoes in a basement kitchen. That’s basically what he did.

Today, Kimbal is a major player in the "farm-to-table" movement. He co-founded The Kitchen Restaurant Group, which focuses on sourcing everything from local farmers. He also runs a non-profit called Big Green, which builds "learning gardens" in schools across the country.

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He still sits on the boards of Tesla and SpaceX, so he’s definitely still in Elon’s inner circle. They’re known to be close, even if they bicker. Kimbal’s wife, Christiana Wyly, once mentioned that the brothers can have a massive blowout argument and be totally fine five minutes later, wanting to watch a movie together.

The Youngest: Tosca Musk, the Romance Mogul

Then there’s Tosca. She’s the youngest of the three original Musk siblings. While her brothers were messing with software, she was obsessed with storytelling.

She moved to Canada with her mother, Maye Musk, when she was just a teenager. By the early 2000s, she was already producing and directing films. But her biggest move came in 2017 when she co-founded Passionflix.

Think of Passionflix as the "Netflix for romance."

It’s a streaming service that specifically adapts bestselling romance novels into movies and series. It’s a smart niche. The romance novel industry is worth billions, yet it’s often ignored by big Hollywood studios. Tosca saw that gap and jumped in.

She’s the CEO and she directs many of the films herself. As of early 2026, she’s still going strong, recently releasing a New Year's message to her "Passionistas" (that’s what she calls the fans) about upcoming projects like Royally Screwed and new seasons of The Black Dagger Brotherhood.

She’s a single mother of twins—Grayson and Isabeau—whom she had through IVF. She’s very open about it, too. Basically, she’s as independent as they come. She supports her brothers, but she’s made it very clear in interviews that her politics and her business are her own.

The "Other" Siblings: It Gets Complicated

Okay, so we’ve covered the core three: Elon, Kimbal, and Tosca. But if you’re asking "Does Elon Musk have any siblings?" in the most literal sense, the answer is actually "yes, and it's a lot."

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Elon's father, Errol Musk, has had a... let's call it a "prolific" life.

After divorcing Maye Musk, Errol remarried Heide Bezuidenhout. From that marriage, Elon has two half-sisters:

  • Alexandra Musk
  • Asha Rose Musk

Then things got truly bizarre. Errol ended up having children with his former stepdaughter, Jana Bezuidenhout. Jana was only four years old when Errol married her mother, Heide. This caused a massive, understandable rift in the family. Elon has described his father as a "terrible human being" in interviews, and this situation is a big reason why.

From the relationship with Jana, there are two more half-siblings:

  • Elliot "Rushi" Musk (born around 2017)
  • A younger daughter (born around 2019)

So, technically, Elon is the eldest of seven children.

Do They Actually Get Along?

It depends on who you ask.

The bond between Elon, Kimbal, and Tosca seems solid. They show up for each other's launches and premieres. Their mother, Maye, is the glue that holds them together. She’s a supermodel and dietitian who worked five jobs to support them when they first moved to Canada. That kind of shared struggle usually creates a tight bond.

Tosca has mentioned that while they give each other business advice, they try to keep it to "family stuff" when they hang out. Just like any other family, but with more private jets and NDAs.

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As for the paternal half-siblings? There doesn't seem to be much of a relationship there. Elon’s relationship with Errol is essentially non-existent, and that likely extends to the children Errol has fathered more recently.

Summary of the Musk Sibling Tree

If you're trying to keep everyone straight, here's the quick breakdown of the siblings Elon actually grew up with:

Kimbal Musk * Role: Entrepreneur, Chef, Environmentalist.

  • Main Ventures: The Kitchen Restaurant Group, Big Green, Square Roots.
  • Connection to Elon: Co-founded Zip2; sits on Tesla and SpaceX boards.

Tosca Musk * Role: Filmmaker, CEO.

  • Main Venture: Passionflix (Romance streaming service).
  • Connection to Elon: Shared early tech work at Zip2; younger sister.

What You Can Learn From the Musk Family Dynamic

The Musks aren't just a family; they’re a case study in high-output environments. Whether you like them or not, you can't deny the "Musk" trait: a weirdly intense drive to build things from scratch.

  • Diversification of Success: Notice how they didn't all go into the same field. They carved out niches in tech, food, and entertainment.
  • Family Resilience: Their early years in South Africa were reportedly quite difficult. That shared history seems to have forged a "us against the world" mentality, particularly between the three children of Maye Musk.
  • Independence: Even though Elon is a billionaire many times over, both Kimbal and Tosca have gone through the grind of raising their own capital and building their own brands without just living off "Elon money."

If you want to keep tabs on the family, following Maye Musk on social media is usually the best bet—she’s the one who posts the most candid photos of the siblings together. You might also want to check out Tosca’s latest work on Passionflix if you’re a fan of romance, or look for a "The Kitchen" restaurant next time you're in Colorado or Chicago to see what Kimbal is up to.


Next Steps:
If you're curious about the next generation, you might want to look into the Musk family tree regarding Elon’s children, as that's an even larger (and arguably more complex) group than his siblings. You could also research Maye Musk’s book, A Woman Makes a Plan, for a deeper look at how she raised three entrepreneurs as a single mother.