The Complete List Of Elon Musk's 14 Children: Names, Mothers, And The Bizarre Meanings Behind Them

Billionaire entrepreneur Elon Musk, known for his ventures in space exploration (SpaceX), electric vehicles (Tesla), and social media (X), is just as famous for his ever-expanding family. As of December 2025, the tech mogul is a father to a total of 14 children, welcomed with four different women, a number that has continually made headlines and sparked global curiosity. The names of his children range from the traditional to the truly avant-garde, reflecting the unique and often unconventional personality of the man himself.

This comprehensive, updated guide breaks down the full list of the ‘Musk-eteers’ in chronological order, revealing the latest additions, the mothers of his children, and the fascinating stories behind the most talked-about names in the world.

Elon Musk: A Brief Biographical Profile

Elon Reeve Musk is a business magnate, investor, and philanthropist who holds South African, Canadian, and U.S. citizenship. His life is defined by ambitious projects aimed at revolutionizing transportation, energy, and space travel.

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• Full Name: Elon Reeve Musk
• Date of Birth: June 28, 1971
• Place of Birth: Pretoria, South Africa
• Parents: Errol Musk (Engineer) and Maye Musk (Model/Dietitian)
• Education: University of Pennsylvania (B.A. in Physics and B.S. in Economics)
• Major Companies Founded/Co-Founded: Zip2 (1995), X.com (1999, later PayPal), SpaceX (2002), Tesla (2003), Neuralink (2016), The Boring Company (2016), xAI (2023)
• Current Titles: CEO of Tesla, CEO of SpaceX, CTO of X (formerly Twitter)
• Total Children (as of late 2025): 14
• Mothers of His Children: Justine Wilson, Grimes (Claire Boucher), Shivon Zilis, and St. Clair

The Full Chronological List of Elon Musk’s 14 Children

Elon Musk's journey into fatherhood began in the early 2000s and has continued with recent additions in 2024 and 2025, solidifying his status as a major proponent of high birth rates. The list below details each child, their mother, and their birth year.

Children with Justine Wilson (First Wife)

Elon Musk and his first wife, Canadian author Justine Wilson, had a total of six children together. Their firstborn tragically passed away, followed by a set of twins and then triplets, all conceived through IVF.

• Nevada Alexander Musk
  • Born: 2002
  • Status: Tragically died of Sudden Infant Death Syndrome (SIDS) at 10 weeks old.
• Griffin Musk (Twin)
  • Born: 2004
  • Note: One of the first set of twins, born via IVF.
• Vivian Jenna Wilson (Twin)
  • Born: 2004
  • Note: Vivian legally changed her name in 2022 to Vivian Jenna Wilson, adopting her mother's maiden name, and stating she no longer wishes to be related to her biological father.
• Kai Musk (Triplet)
  • Born: 2006
  • Note: One of a set of triplets born via IVF.
• Saxon Musk (Triplet)
  • Born: 2006
  • Note: Part of the second set of multiples.
• Damian Musk (Triplet)
  • Born: 2006
  • Note: The final child born to Musk and Wilson.

Children with Grimes (Claire Boucher)

Musk’s relationship with Canadian musician Grimes produced three children, whose names are arguably the most famous—and confusing—in the world. These unique names have become a signature entity of the Musk family tree.

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• X Æ A-Xii Musk (Originally X Æ A-12)
  • Born: May 4, 2020
  • Nickname: 'X'
  • Meaning: The name was famously changed due to California law prohibiting numbers in a name. 'X' stands for the unknown variable, 'Æ' is the Elven spelling of AI (artificial intelligence or love), and 'A-Xii' is a reference to the Lockheed SR-71 Blackbird's predecessor, the Archangel 12.
• Exa Dark Sideræl Musk
  • Born: December 2021 (via surrogate)
  • Nickname: 'Y' or 'Why?'
  • Meaning: 'Exa' refers to the supercomputing term exaFLOPS; 'Dark' refers to the unknown, dark matter; and 'Sideræl' is a more Elven spelling of 'sidereal', meaning "of the stars." Grimes has since revealed she calls her daughter 'Y' or 'Why?'.
• Techno Mechanicus Musk
  • Born: Reported in 2023
  • Nickname: 'Tau'
  • Note: The third child with Grimes, whose existence was revealed in a biography of Musk. The name continues the theme of technology and science.

The Latest Additions: Children with Shivon Zilis and St. Clair

The most recent years have seen a rapid expansion of Musk’s family, with four children born to Neuralink executive Shivon Zilis and one with journalist St. Clair, adding to the total count of 14 children.

Children with Shivon Zilis (Neuralink Executive)

Shivon Zilis, an executive at Musk's brain-chip company Neuralink, gave birth to twins in 2021, followed by two more children in 2024, all of whom were kept private until their existence was revealed in media reports.

• Strider Musk (Twin)
  • Born: 2021 (just weeks before Exa Dark Sideræl)
  • Note: One of a pair of twins.
• Azure Musk (Twin)
  • Born: 2021
  • Note: The twin sister of Strider.
• Arcadia Musk
  • Born: Early 2024
  • Note: The third child with Zilis, a daughter, whose birth was reported in June 2024.
• Seldon Lycurgus Musk
  • Born: 2024
  • Note: The fourth child with Zilis, a son, whose name was announced in late 2024. The name Seldon Lycurgus follows the trend of unusual, classical, or literary-inspired names.

Child with St. Clair (Conservative Journalist)

Adding to the complexity of the Musk family tree, a 14th child was recently confirmed with conservative journalist St. Clair.

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• Romulus Musk
  • Born: September 2024
  • Note: The birth was announced in February 2025. The name Romulus, like Lycurgus, has roots in classical history, potentially referencing the mythical founder of Rome.

The Significance of the Unique Names and Family Structure

The sheer number of children, and the highly unusual names given to several of them, have been a constant source of public fascination and topical authority. The names themselves are a reflection of Musk’s interests and worldview, heavily influenced by science fiction, classical history, mathematics, and technology. Entities like X Æ A-Xii and Techno Mechanicus are not mere names; they are statements about a future-forward, transhumanist perspective.

The naming conventions fall into distinct categories. The children with Justine Wilson bear relatively traditional names (Griffin, Saxon, Damian), while the children with Grimes have names that are virtually unique (Exa Dark Sideræl, X Æ A-Xii). The most recent children with Shivon Zilis and St. Clair feature names with strong, often classical, literary or historical LSI keywords, such as Strider, Azure, Seldon Lycurgus, and Romulus.

This family structure also highlights Musk’s publicly stated concerns about declining birth rates and the future of human civilization. He has often emphasized the importance of having children to ensure humanity's survival, positioning his own large family as an example of his commitment to this belief. The continuous updates and revelations about his children ensure that the "Elon Musk kids names" search term remains one of the most consistently searched and discussed topics in celebrity and business news.

From the tragic loss of Nevada to the legal name change of Vivian Jenna Wilson, and the latest additions of Seldon Lycurgus and Romulus, the Musk family story is an evolving saga. The names serve as a testament to the complex, unconventional, and highly public life of one of the world's most influential figures.