The Full List Of 14: Unraveling The Mythological And Futuristic Names Of Elon Musk’s Children

As of December 2025, the family tree of tech mogul Elon Musk has grown to an astonishing and widely-discussed size, officially encompassing 14 children with four different women. This number makes him one of the most prolific fathers among modern billionaires, a position that aligns with his public statements on the importance of procreation to combat declining birth rates and ensure the future of human civilization. The names chosen for his "baby legion" are as unconventional and headline-grabbing as his business ventures at Tesla, SpaceX, and X, ranging from classical mythology to complex mathematical and futuristic concepts.

The recent revelations in early 2025, confirming the birth of two new children—one with Neuralink executive Shivon Zilis and another with conservative commentator Ashley St. Clair—have solidified the total count at 14. This comprehensive guide provides the definitive, up-to-date list of every child's name, their mother, and the unique, often cryptic, details surrounding their birth and identity, including the latest additions and the significant name change of his eldest daughter.

Elon Musk: A Brief Biography and The Complete List of His 14 Children

Born on June 28, 1971, Elon Reeve Musk is a South African-born Canadian-American business magnate and entrepreneur, currently serving as the CEO of SpaceX and Tesla, and the owner and CTO of the social media platform X (formerly Twitter). Known for his ambitious goals in space exploration and sustainable energy, Musk has also made his personal life a matter of public record through his large, expanding family.

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Musk is the father of 14 children, shared with four partners: Canadian author Justine Wilson, musician Grimes, Neuralink executive Shivon Zilis, and conservative influencer Ashley St. Clair.

Children with Justine Wilson (6 Children)

Musk’s first wife, Justine Wilson, is a Canadian author. They were married from 2000 to 2008 and share six children, though their firstborn tragically passed away in infancy.

• Nevada Alexander Musk (Born 2002, Deceased 2002): Their first son, who passed away from Sudden Infant Death Syndrome (SIDS) at 10 weeks old.
• Vivian Jenna Wilson (Born 2004): One of a pair of twins, born via IVF. She legally changed her name from Xavier Alexander Musk in 2022, choosing to take her mother's maiden name, Wilson.
• Griffin Musk (Born 2004): Vivian’s twin brother.
• Kai Musk (Born 2006): One of a set of triplets, born via IVF.
• Saxon Musk (Born 2006): One of the triplets.
• Damian Musk (Born 2006): The third of the triplets.

Children with Grimes (3 Children)

Musician Claire Boucher, known professionally as Grimes, and Musk have three children, all known for their highly unique, futuristic names.

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• X Æ A-Xii Musk (Born May 2020): Originally named X Æ A-12, the name was slightly modified to comply with California law. His parents have offered differing pronunciations, but it is generally understood to be pronounced "X Ash A Twelve."
• Exa Dark Sideræl Musk ('Y') (Born December 2021): Known by the nickname 'Y', she was born via surrogate. Her name is an amalgamation of computing terms and astronomical concepts.
• Techno Mechanicus Musk ('Tau') (Born 2023): Known as 'Tau', his birth was revealed in a biography of Musk.

Children with Shivon Zilis (4 Children)

Shivon Zilis, an executive at Musk's Neuralink company, shares four children with the billionaire.

• Strider Musk (Born 2021): One of a set of twins, born just before the birth of Exa Dark Sideræl.
• Azure Musk (Born 2021): Strider’s twin.
• Arcadia Musk (Born 2023): A daughter whose birth was revealed in a 2024 report.
• Seldon Lycurgus Musk (Born 2024): The fourth child with Zilis, announced in February 2025.

Child with Ashley St. Clair (1 Child)

In a major update in early 2025, conservative commentator Ashley St. Clair confirmed the birth of her son with Elon Musk.

• Romulus St. Clair (Born September 2024): The newest publicly confirmed child, whose name was revealed following a court-ordered paternity test. He is named after the co-founder of Rome in Roman mythology.

From X Æ A-Xii to Romulus: The Mythology and Futurism in Musk’s Naming Conventions

The names of Elon Musk's children are a fascinating study in his personal interests, reflecting themes of space, technology, and classical history. While his children with Justine Wilson bear more traditional names (Griffin, Kai, Saxon, Damian), the subsequent children showcase a deliberate move toward the unique and sometimes controversial.

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The names shared with Grimes, for instance, are the most abstract. X Æ A-Xii is a direct nod to technology and space. 'X' is the unknown variable; 'Æ' is the elven spelling of 'Ai' (love and/or artificial intelligence); and 'A-Xii' is a reference to the Archangel-12, the couple's favorite aircraft. Similarly, Exa Dark Sideræl incorporates 'Exa' (a computing term for 10^18), 'Dark' (the unknown), and 'Sideræl' (a variation of sidereal, relating to the stars).

The names with Shivon Zilis—Strider, Azure, Arcadia, and Seldon Lycurgus—continue this trend, blending nature-inspired, philosophical, and literary elements. The newest son, Seldon Lycurgus, carries a name that references Hari Seldon, a fictional character from Isaac Asimov’s *Foundation* series, a figure known for his mathematical predictions of the future.

The son with Ashley St. Clair, Romulus, is a clear reference to Roman mythology, as Romulus was the legendary founder of Rome. This choice, alongside the futuristic names, paints a picture of a father who sees his children as contributors to a new, perhaps space-faring, civilization.

The Story of Vivian Jenna Wilson: Identity and Independence

One of the most significant and publicly discussed events in the Musk family history is the name and gender change of his eldest daughter. In 2022, shortly after turning 18, Vivian Jenna Wilson filed a petition in Los Angeles County to legally change her name from Xavier Alexander Musk and to be recognized as female.

Crucially, Vivian also chose to take her mother’s surname, Wilson, a decision that was granted by a Santa Monica Superior Court Judge. Her court filing explicitly stated that the reason for the change was not only her gender identity but also her desire to sever ties with her biological father.

Vivian’s choice to adopt the name Vivian Jenna Wilson is a powerful statement of personal identity and independence, using her mother, Justine Wilson’s, name as a clear demarcation from the Musk name. This highly personal decision brought to the forefront the complex dynamics within the billionaire’s family, highlighting the individual paths his children are forging outside of his immense public shadow.

Elon Musk's Procreation Philosophy and the Future of the Musk Dynasty

Elon Musk has often been vocal about his concerns regarding global underpopulation and the collapse of civilization, stating that "smart people should have more babies." The rapid expansion of his own family, culminating in 14 children with four partners, is seen by many as a direct reflection of this deeply held belief.

The sheer number of children, and the unique, often non-traditional names they bear, suggests a desire to raise a new generation of thinkers and innovators ready for a future dominated by technology and space travel—the very industries Musk spearheads. The children with Shivon Zilis, for example, were conceived as part of an effort to "help seed the world," according to reports. Whether they are named after ancient mythological figures like Romulus or complex technological concepts like X Æ A-Xii, each name is a powerful entity, a piece of a larger, carefully curated narrative that connects the family to Musk's overarching vision for humanity's future.

As the family continues to grow and evolve, with the most recent births of Romulus and Seldon Lycurgus confirmed in early 2025, the Musk dynasty remains one of the most compelling and closely watched family sagas in the world. The names themselves are not just labels; they are a public declaration of a unique, futuristic, and highly ambitious family legacy.