The 14 Most Shocking Names Of Elon Musk’s Children And Their Secret Meanings (Updated 2025)
Elon Musk, the visionary behind Tesla, SpaceX, and X (formerly Twitter), is a figure whose life is constantly under the global spotlight, but perhaps no aspect is as fascinating and consistently updated as his expanding family. As of the current date in December 2025, the tech mogul is a father to a staggering 14 children with three different women, each child bearing a name that ranges from the traditional to the truly bizarre—often reflecting his deep love for science fiction, technology, and obscure mythology.
This comprehensive, up-to-date guide reveals the full list of his children, their unique names, their mothers, and the fascinating stories and inspirations behind the most unconventional monikers, including the newest additions, Arcadia and Seldon Lycurgus, whose existence dramatically increased the count from 11 to 14 in recent years. Prepare to dive into the celestial, technical, and mythological origins of the names of the "Musk-eteers."
The Complete Biography and Chronology of Elon Musk's 14 Children
Elon Musk's journey into fatherhood began in the early 2000s and has continued to expand, with the most recent additions being confirmed in 2024. The names are as diverse as the mothers who bore them: author Justine Wilson, musician Grimes (Claire Elise Boucher), and Neuralink executive Shivon Zilis. The following is a chronological list of all 14 children.
- Nevada Alexander Musk (Born 2002, with Justine Wilson): Tragically passed away from Sudden Infant Death Syndrome (SIDS) at 10 weeks old.
- Griffin Musk (Born April 2004, with Justine Wilson): Twin.
- Vivian Jenna Wilson (Born April 2004, with Justine Wilson): Twin. Originally named Xavier Musk, she legally changed her name in 2022, adopting her mother's maiden name, citing gender identity and a desire to sever ties with her biological father.
- Kai Musk (Born 2006, with Justine Wilson): Triplet.
- Saxon Musk (Born 2006, with Justine Wilson): Triplet.
- Damian Musk (Born 2006, with Justine Wilson): Triplet.
- X Æ A-12 Musk (Now "X") (Born May 4, 2020, with Grimes): Son. His name was legally simplified to "X" due to California law restrictions on using non-English characters.
- Exa Dark Sideræl Musk (Nicknamed "Y") (Born December 2021, with Grimes): Daughter, born via surrogate. Her nickname is "Y," following the pattern of her older brother.
- Strider Musk (Born November 2021, with Shivon Zilis): Twin.
- Azure Musk (Born November 2021, with Shivon Zilis): Twin.
- Techno Mechanicus Musk (Nicknamed "Tau") (Born June 2022, with Grimes): Son. His existence and name were revealed in a 2023 biography.
- Arcadia Musk (Born February 2024, with Shivon Zilis): Daughter.
- Seldon Lycurgus Musk (Born 2024, with Shivon Zilis): Son. The 14th child, whose name was announced in 2024.
Decoding the Unconventional Names: From X to Tau
The children Musk shares with musician Grimes and Neuralink executive Shivon Zilis possess names that are arguably the most perplexing and intriguing, often blending high-concept technology, mathematics, and science fiction. These names are not just random choices; they are a direct reflection of Musk's unique worldview and interests, providing a deep well of topical authority for name etymology enthusiasts.
The Grimes Trilogy: X, Y, and Tau
The three children Musk shares with Grimes—a relationship marked by a mutual love for futurism and the avant-garde—have names that read like a secret code, reflecting a blend of technology, astronomy, and elven language.
X Æ A-12 (Now X)
The name that broke the internet. Initially, the full name was a complex cipher. The parents explained the meaning as follows: "X" is the unknown variable; "Æ" is the Elven spelling of "Ai" (meaning love and/or Artificial Intelligence); and "A-12" is a reference to the Archangel-12, the precursor to the SR-71 Blackbird, which the couple described as their favorite aircraft. Due to California state law prohibiting numbers in a legal name, the name was officially changed to X Æ A-Xii, and then simplified to X Musk for day-to-day use.
Exa Dark Sideræl (Y)
The second child, a girl nicknamed "Y," was given the name Exa Dark Sideræl. "Exa" refers to a unit of computing power, an exaflop, which is $10^{18}$ floating-point operations per second. "Dark" is a reference to the "unknown" and the "dark matter" of the universe, which Grimes described as "the true beauty of the universe." "Sideræl" is an Elven spelling of "sidereal," meaning relating to or determined by the stars, a celestial and cosmic reference.
Techno Mechanicus (Tau)
The third child, a son whose existence was a surprise revelation in 2023, is named Techno Mechanicus, with the nickname Tau. "Techno Mechanicus" is a clear nod to technology and engineering, fitting Musk's life's work. The nickname "Tau" is derived from the Greek letter $\tau$, which is often used in mathematics and physics, particularly in the context of time constants and rotation. This name perfectly encapsulates the themes of technology, science, and the cosmos that define the Musk-Grimes family.
The Zilis Children: Strider, Azure, Arcadia, and Seldon Lycurgus
Musk's four children with Neuralink executive Shivon Zilis also feature highly unusual names, though they draw more from mythology, literature, and classical history than pure technology. The two newest additions, born in 2024, cemented the total count at 14, making this information a critical update for any biographical record.
Strider and Azure Musk
The boy-girl twins, born in late 2021, are named Strider and Azure. Strider is a name with literary roots, widely believed to be a reference to the alias of Aragorn, the legendary warrior and traveler from J.R.R. Tolkien's *The Lord of the Rings*. This choice signifies movement, exploration, and a heroic journey. Azure is a more classical, beautiful name, referring to the deep, celestial blue color of the sky, giving it a cosmic, open-sky feel that aligns with Musk’s SpaceX ambitions.
Arcadia and Seldon Lycurgus Musk
The final two additions, confirmed in 2024, are Arcadia and Seldon Lycurgus. These names are perhaps the clearest reference yet to Musk's deep love for classic science fiction, specifically the works of Isaac Asimov. Seldon is a direct homage to Hari Seldon, the visionary mathematician in Asimov’s *Foundation* series, who develops the science of psychohistory. Arcadia is also a name of significance in the *Foundation* universe, referring to the character Arcadia Darell. Furthermore, Lycurgus is the name of a legendary Spartan lawgiver, adding a layer of classical history and political philosophy to the child's identity. The combination of these names reflects a profound engagement with futurism, governance, and the distant reaches of space and time.
The Name Change: Vivian Jenna Wilson
One of the most publicized and personally significant events in the family's naming history involves the name change of one of the twins from his first marriage to Justine Wilson. Born Xavier Musk, the child transitioned and legally changed her name to Vivian Jenna Wilson in 2022. The court documents cited two reasons for the change: gender identity and "the fact that I no longer live with or wish to be related to my biological father in any way, shape or form." This decision highlights a personal and public separation from the Musk surname and its associated identity.
The choice to adopt the surname Wilson (her mother's maiden name) and the new first name Vivian (meaning "alive" or "life") and middle name Jenna (a variation of Jane, meaning "God is gracious") is a powerful statement of self-determination and personal identity, contrasting sharply with the conceptual, public-facing names of her younger half-siblings. This move, while personal, has become a major talking point in discussions about the complex dynamic of the Musk family.
Topical Authority: The Naming Conventions of the Future
The names of Elon Musk's children—Griffin, Kai, Saxon, Damian, Strider, Azure, X, Y, Tau, Arcadia, and Seldon Lycurgus—serve as a unique case study in celebrity naming trends, pushing the boundaries of what is considered acceptable or conventional. They blend classical mythology (Damian, Lycurgus), high-concept science fiction (Seldon, Arcadia), mathematical symbols (X, Tau), and technological references (Exa, Mechanicus).
This pattern of naming is a clear extension of Elon Musk’s public persona and his companies' missions. Names like Techno Mechanicus and Exa Dark Sideræl are essentially brand extensions of the futurist, space-faring, and AI-driven themes that define Tesla and SpaceX. They are not merely names; they are philosophical statements about the future of humanity, reflecting a desire to instill a sense of the cosmic and the technological in the next generation. For those tracking the evolution of personal identity in the digital age, the Musk family provides a fascinating, ongoing narrative. The total count of 14 children, with new names continually emerging, ensures that the story of the "Musk-eteers" remains one of the most talked-about topics in the world.
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