The Full List Of Elon Musk’s 14 Children: Unpacking The World’s Most Unusual Baby Names And Their Meanings
The family of tech mogul Elon Musk has expanded once again, making headlines globally. As of December 2025, the Tesla and SpaceX CEO is a father to 14 children, shared with four different women, a number that solidifies his public commitment to addressing the world’s declining birth rate. The sheer size of the "Musk-eteers" is only rivaled by the increasingly unique and complex names given to his youngest children, names that often draw inspiration from science, technology, history, and even Elven language.
This comprehensive guide provides the most current and verified list of all 14 Elon Musk's children, their mothers, birth years, and a deep dive into the fascinating, sometimes controversial, meanings behind the most talked-about monikers. The recent revelations in 2024 and 2025 of children with Shivon Zilis and Ashley St. Clair have brought the total number to its current count, ensuring this is the most up-to-date information available on the billionaire's growing clan.
The Complete Biography of Elon Musk’s 14 Children
Elon Musk shares his 14 children with four women: his first wife, Canadian author Justine Wilson; musician and artist Grimes (Claire Boucher); Neuralink executive Shivon Zilis; and conservative author Ashley St. Clair. The following is a chronological list of the Musk children, highlighting the family's complex and ever-evolving structure.
- Nevada Alexander Musk (Mother: Justine Wilson)
- Born: 2002
- Status: Tragically passed away at 10 weeks old due to Sudden Infant Death Syndrome (SIDS).
- Griffin Musk (Mother: Justine Wilson)
- Born: 2004 (Twin)
- Vivian Jenna Wilson (Mother: Justine Wilson)
- Born: 2004 (Twin)
- Note: Legally changed her name and gender identity in 2022 to Vivian Jenna Wilson, choosing to adopt her mother's maiden name.
- Kai Musk (Mother: Justine Wilson)
- Born: 2006 (Triplet)
- Saxon Musk (Mother: Justine Wilson)
- Born: 2006 (Triplet)
- Damian Musk (Mother: Justine Wilson)
- Born: 2006 (Triplet)
- X Æ A-Xii Musk (Mother: Grimes/Claire Boucher)
- Born: May 2020
- Nickname: "X"
- Note: Originally named X Æ A-12, the name was later changed to X Æ A-Xii to comply with California state law regarding the use of Roman numerals.
- Strider Zilis Musk (Mother: Shivon Zilis)
- Born: November 2021 (Twin)
- Azure Zilis Musk (Mother: Shivon Zilis)
- Born: November 2021 (Twin)
- Exa Dark Sideræl Musk (Mother: Grimes/Claire Boucher)
- Born: December 2021 (Via Surrogate)
- Nickname: "Y"
- Arcadia Zilis Musk (Mother: Shivon Zilis)
- Born: 2024
- Seldon Lycurgus Musk (Mother: Shivon Zilis)
- Born: 2024
- Romulus Musk (Mother: Ashley St. Clair)
- Born: September 2024
- Techno Mechanicus Musk (Mother: Grimes/Claire Boucher)
- Born: 2023
- Nickname: "Tau"
Decoding the Sci-Fi and Historical Inspirations Behind Musk’s Unique Names
The names of Elon Musk's children with Grimes and Shivon Zilis are less about traditional family heritage and more about a futuristic, high-concept worldview, reflecting the CEO's deep interests in artificial intelligence (AI), space exploration, and classical history. These names provide a direct link to the man’s intellectual passions and his vision for humanity.
The Grimes Trilogy: X, Y, and Tau
The three children Musk shares with Grimes (Claire Boucher) have the most complex and esoteric names, each a coded message blending technology and mythology.
- X Æ A-Xii (X): This name is a constellation of references. "X" is the unknown variable in mathematics. "Æ" is the Elven spelling of AI (Artificial Intelligence or Love). The original "A-12" referred to the Archangel-12, a high-altitude reconnaissance aircraft, which they described as the "precursor to SR-71 (their favorite aircraft)." When the name was changed to Xii, it became the Roman numeral for 12.
- Exa Dark Sideræl (Y): Born via a surrogate, this name is a nod to supercomputing and the cosmos. "Exa" is a reference to ExaFLOP, a unit of computing performance used in supercomputing. "Dark" refers to the mysterious dark matter and the unknown nature of the universe. "Sideræl" is described as a more Elven spelling of sidereal, meaning "of the stars."
- Techno Mechanicus (Tau): The youngest of the Grimes children, "Tau" is a clear reference to advanced technology and engineering. "Techno" is an obvious nod to technology, while "Mechanicus" suggests a master of mechanics or engineering. The nickname "Tau" is the 19th letter of the Greek alphabet, often used in physics and mathematics, further cementing the scientific theme.
The Zilis and St. Clair Additions: History, Literature, and Philosophy
The four children shared with Neuralink executive Shivon Zilis and the child with author Ashley St. Clair continue the pattern of unique, conversation-starting names, moving from pure sci-fi to deep historical and literary sources.
The Zilis Quadruplets: Strider, Azure, Arcadia, and Seldon Lycurgus
Shivon Zilis and Elon Musk welcomed twins Strider and Azure in 2021, followed by Arcadia and Seldon Lycurgus in 2024, expanding the family to four children with Zilis.
- Strider and Azure: These names are more conventional than the Grimes children but still carry a sense of the fantastical. "Strider" is a name famously associated with Aragorn in J.R.R. Tolkien’s The Lord of the Rings, suggesting a wanderer or a pathfinder. "Azure" is a deep sky-blue color, evoking the vastness of the sky and space, a clear thematic link to Musk’s work at SpaceX.
- Arcadia: The name "Arcadia" is a pastoral, utopian region in Greek mythology, symbolizing a vision of unspoiled, harmonious wilderness. It is often used to represent a paradise or a simpler, purer existence, perhaps a philosophical contrast to the tech-driven world.
- Seldon Lycurgus: This name is arguably the most literary and historical of the group. "Seldon" is a direct reference to Hari Seldon, the brilliant mathematician who creates psychohistory in Isaac Asimov's seminal Foundation science fiction series, a concept central to predicting the future of civilization. "Lycurgus" is the legendary lawgiver of Sparta, who is credited with establishing the military-focused communal society of ancient Sparta. This combination speaks to Musk's appreciation for both futuristic theoretical science and ancient societal engineering.
The Latest Addition: Romulus
The birth of a son named Romulus with author Ashley St. Clair in late 2024 was another surprise addition to the Musk family.
- Romulus: This name is a powerful historical reference, tying directly back to the founding of Rome. In Roman mythology, Romulus and his twin brother Remus were the legendary founders of the city of Rome. Romulus ultimately killed Remus and became the first King of Rome. The name signifies foundational leadership, power, and a new beginning, themes that resonate with Musk's own history of founding major companies like Tesla and SpaceX.
The Public and Media Fascination with Elon Musk’s Family
The continuous expansion of Elon Musk's family and the choice of names are a constant source of media fascination and public debate. The names, particularly those with Grimes, are often seen as a reflection of the billionaire's own futurist and eccentric personality. The birth of 14 children with four different partners has also fueled discussions about modern family structures, polygamy, and the role of a high-profile figure in publicizing his personal life.
Musk himself has been vocal about his concerns regarding population decline, often stating that he is "doing his part" to help the birth rate. The names serve as more than just labels; they are conversation starters, philosophical statements, and a unique form of personal branding that is inextricably linked to the Musk empire. From the classic simplicity of Griffin and Damian to the complex code of X Æ A-Xii and the historical gravitas of Seldon Lycurgus, the names of Elon Musk's children tell a story as ambitious and unconventional as the man himself.
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