The Complete List Of Elon Musk’s 14 Children: Unpacking The World’s Most Unusual Baby Names And Their Meanings

Billionaire entrepreneur Elon Musk, the CEO of Tesla, SpaceX, and owner of X (formerly Twitter), is as famous for his ambitious ventures into space and technology as he is for his large and rapidly growing family. As of the end of 2025, the tech mogul is a father to a confirmed 14 children, welcomed with four different women. This sprawling family tree and the famously complex, futuristic, and mythological names he chooses have become a continuous source of public fascination, often sparking global conversations about celebrity parenting and the future of nomenclature.

The latest updates, current as of December 13, 2025, confirm that Musk’s family continues to expand, with the most recent additions pushing the total count to 14. Unpacking the names of his children—which range from the traditional to the truly avant-garde—reveals a fascinating glimpse into the mind of one of the world’s most influential figures. This article provides the complete, updated list of all 14 children, their mothers, and the intriguing story and meaning behind each name.

Elon Musk: Complete Biography and Family Profile

Elon Reeve Musk is a business magnate, investor, and engineer, holding citizenship in South Africa, Canada, and the United States. He is the founder, CEO, and Chief Engineer of SpaceX; CEO and product architect of Tesla, Inc.; owner and CTO of X (formerly Twitter); and founder of The Boring Company, xAI, and co-founder of Neuralink and OpenAI.

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• Full Name: Elon Reeve Musk
• Date of Birth: June 28, 1971
• Place of Birth: Pretoria, Transvaal, South Africa
• Parents: Errol Musk (Engineer, Property Developer) and Maye Musk (Model, Dietitian)
• Siblings: Kimbal Musk (Brother) and Tosca Musk (Sister)
• Education: University of Pennsylvania (B.A. in Physics and B.S. in Economics)
• Wives/Partners:
  • Justine Wilson (Married 2000–2008)
  • Talulah Riley (Married 2010–2012; 2013–2016) - *No children from this marriage.*
  • Claire "Grimes" Boucher (Relationship 2018–2021)
  • Shivon Zilis (Neuralink Executive)
  • Ashley St. Clair (Conservative Influencer)
• Total Confirmed Children: 14 (as of December 2025)

The 14 Children of Elon Musk: Name, Mother, and Birth Timeline

Elon Musk's children were welcomed with four different women, beginning with his first wife, Canadian author Justine Wilson, and continuing with musician Grimes, Neuralink executive Shivon Zilis, and most recently, conservative influencer Ashley St. Clair. The list below is organized by the mother and the birth order of the children.

Children with Justine Wilson (6 Children)

Musk and his first wife, Justine Wilson, had six children together. Their first son tragically died of SIDS, and they later welcomed a set of twins and a set of triplets.

• Nevada Alexander Musk
  • Status: Deceased (Died at 10 weeks old in 2002 from SIDS).
• Griffin Musk & Vivian Jenna Wilson (Twins)
  • Born: 2004
  • Note: Vivian was formerly named Xavier Alexander Musk but legally changed her name in 2022 to Vivian Jenna Wilson, choosing to adopt her mother's maiden name.
• Kai Musk, Saxon Musk, & Damian Musk (Triplets)
  • Born: 2006
  • Note: These three sons were conceived via IVF.

Children with Grimes (Claire Boucher) (3 Children)

Musk’s relationship with Canadian musician Grimes produced three children, all known for having names that blend technology, mathematics, and mythology, often requiring a public explanation from the parents.

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• X Æ A-Xii (Nickname: X)
  • Born: May 2020
  • Meaning: The name is famously complex. 'X' is the unknown variable. 'Æ' is the Elven spelling of AI (Artificial Intelligence and/or love). 'A-12' is the precursor to the SR-71 (Musk’s favorite aircraft, the Archangel 12). The name was legally changed to X Æ A-Xii due to California law restrictions on non-English characters.
• Exa Dark Sideræl Musk (Nickname: Y)
  • Born: December 2021 (via surrogate)
  • Meaning: 'Exa' refers to ExaFLOPS, a unit of computing performance. 'Dark' represents the unknown and beautiful mystery of deep space. 'Sideræl' is an Elven spelling of sidereal, meaning related to the stars.
• Tau Techno Mechanicus (Nickname: T)
  • Born: 2022
  • Meaning: 'Tau' is the Greek letter (τ), often used in mathematics and physics. 'Techno Mechanicus' is clearly a nod to technology and machinery, continuing the futuristic naming theme.

Children with Shivon Zilis (4 Children)

Shivon Zilis, an executive at Musk's Neuralink company, has welcomed four children with the billionaire. Their first two children were twins, followed by two more sons whose births were recently confirmed.

• Strider Sekhar Sirius & Azure Astra Alice (Twins)
  • Born: November 2021
  • Note: Born just weeks before Exa Dark Sideræl (Y), their existence became public in 2022. The names Strider and Azure are notably less complex than the children with Grimes but still carry an epic, mythological or cosmic feel.
• Arcadia
  • Born: 2023
  • Note: The birth of their third child was confirmed in 2024, with the name Arcadia emerging in the media. Arcadia is a region in Greece often associated with a utopian, pastoral ideal.
• Seldon Lycurgus
  • Born: Early 2024
  • Note: Confirmed as Musk’s 14th child (or 13th, depending on the source) and the fourth with Zilis. 'Seldon' is likely a reference to Hari Seldon, a central figure in Isaac Asimov's *Foundation* series, a known inspiration for Musk. 'Lycurgus' is a legendary Spartan lawgiver.

Child with Ashley St. Clair (1 Child)

Reports in late 2024 and early 2025 suggested that Musk had welcomed a child with conservative influencer Ashley St. Clair, bringing the total count to 14. This is the most recent and least publicly confirmed addition to the family.

• Romulus
  • Born: September 2024
  • Note: The name Romulus, reported to be the child’s name, continues the theme of powerful, historical, or mythological figures, as Romulus was the legendary founder of Rome.

The Meaning Behind Elon Musk's Unusual Naming Convention

The names chosen by Elon Musk and his partners are far from conventional, reflecting a clear pattern of inspiration drawn from science fiction, advanced technology, mathematics, and classical mythology. This approach to nomenclature is a fascinating extension of Musk's own public persona and his relentless focus on the future of humanity, space exploration, and artificial intelligence.

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The names serve as powerful entities, keywords, and topical authority markers in their own right:

• Technology and Science: Names like X Æ A-Xii, Exa Dark Sideræl, and Tau Techno Mechanicus are direct references to computing, physics, and aerospace. They highlight Musk's belief in a future deeply intertwined with advanced technology and space travel. The term 'ExaFLOPS' (from Exa Dark Sideræl) is a high-level computing term, while 'Tau' is a mathematical constant, showcasing a love for precision and scientific principles.
• Mythology and History: Names such as Seldon Lycurgus and Romulus ground the futuristic theme in powerful historical and fictional figures. Hari Seldon is a figure who predicts the future in a science fiction epic, while Lycurgus and Romulus are figures of law and foundation. This duality suggests a vision for the future that is both technologically advanced and built upon the foundations of great civilizations.
• The Personal Touch: Even the seemingly more traditional names carry significant meaning. Vivian Jenna Wilson's name change to her mother's maiden name, Wilson, was a personal statement, though Musk has publicly expressed support for all his children. The twins, Strider and Azure, have names that evoke a sense of adventure and the vastness of the sky or sea.

Ultimately, the collective list of names—from the original set of triplets (Kai, Saxon, Damian) to the most recent additions (Seldon, Romulus)—paints a complex picture of a father who views his children not just as individuals, but perhaps as a foundational cohort for the future he constantly strives to build. The public fascination with these names will undoubtedly continue as the children grow up and their unique monikers take on new meaning in the public eye.