The Full Lineage: All 14 Elon Musk Kids' Names, Meanings, And The Four Mothers (Updated 2025)
Elon Musk’s family tree continues to expand and capture global attention, with the latest reports confirming the tech mogul is a father to 14 children with four different women as of late 2024 and early 2025. This extraordinary lineage, spanning two decades, includes a mix of classically traditional names and some of the most unconventional monikers ever given, reflecting his deep interests in science fiction, space, and technology.
The constant, fresh updates surrounding new arrivals and the deeply philosophical meanings behind the names like X Æ A-Xii and Seldon Lycurgus fuel intense public curiosity. This article provides the definitive, up-to-date list of all 14 children, detailing their unique names, the mothers they share, and the fascinating, often futuristic, context behind their identities.
Elon Musk: Full Biography and Profile
Elon Reeve Musk is a South African–born American entrepreneur, business magnate, and investor whose ventures have fundamentally reshaped multiple industries, from electric vehicles to space exploration. His personal life, particularly his large and growing family, is as frequently discussed as his professional endeavors.
- Born: June 28, 1971, in Pretoria, South Africa.
- Nationality: South African, Canadian, and American.
- Education: University of Pennsylvania (B.A. in Physics, B.S. in Economics). He briefly attended Stanford University for a Ph.D. in Physics before dropping out to pursue his entrepreneurial ambitions.
- Key Companies: Co-founder of PayPal, CEO of Tesla, CEO and CTO of SpaceX, Owner and CTO of X (formerly Twitter), Founder of The Boring Company, Co-founder of Neuralink, and Founder of xAI.
- Net Worth: Frequently ranks as one of the wealthiest individuals globally.
- Thematic Interests: Space colonization (Mars), sustainable energy, artificial intelligence, and extending human consciousness.
The Definitive List of Elon Musk’s 14 Children and Their Mothers
Musk’s 14 children were welcomed with four different women: his first wife, Justine Wilson; musician Grimes; Neuralink executive Shivon Zilis; and author Ashley St. Clair. The family is divided into distinct groups, each with its own unique naming convention.
1. Children with Justine Wilson (6 Children, 5 Living)
Musk’s first wife, Canadian author Justine Wilson, is the mother of his first six children. Their firstborn tragically passed away, followed by twins and then triplets.
- Nevada Alexander Musk (2002): Tragically passed away from Sudden Infant Death Syndrome (SIDS) at 10 weeks old.
- Griffin Musk (Born 2004): One of the first set of twins.
- Vivian Jenna Wilson (Born 2004): The other twin, who legally changed her name and severed ties with her father in 2022.
- Kai Musk (Born 2006): One of the triplets.
- Saxon Musk (Born 2006): One of the triplets.
- Damian Musk (Born 2006): One of the triplets.
These names are notably traditional, contrasting sharply with the futuristic names given to his later children. They represent the first chapter of the growing Musk family tree.
2. Children with Grimes (Claire Boucher) (3 Children)
Musk and Canadian musician Grimes are known for their highly conceptual and controversial naming choices, which blend technology, space, and elvish language.
- X Æ A-Xii (Born 2020): Originally named X Æ A-12, the name was slightly modified to comply with Californian law. He is commonly referred to as "X."
- Exa Dark Sideræl Musk (Born 2021): Born via surrogate, she is known by the nickname "Y."
- Techno Mechanicus (Born 2023): His birth was revealed in a biography. He is nicknamed "Tau."
3. Children with Shivon Zilis (4 Children)
Shivon Zilis, an executive at Musk’s company Neuralink, has welcomed four children with the tech CEO. This group of children includes the most recent additions to the family.
- Strider Musk (Born 2021): One of the twins, born just weeks before Exa Dark Sideræl. The name Strider is associated with movement and exploration.
- Azure Musk (Born 2021): The other twin. Azure is a color name, often referring to the deep blue of the sky.
- Arcadia Musk (Born 2024): A daughter whose birth was confirmed in 2024. The name references a mythical, harmonious land.
- Seldon Lycurgus Musk (Born 2025): The newest confirmed arrival with Zilis.
4. Child with Ashley St. Clair (1 Child)
In a late 2024/early 2025 update, it was revealed that Musk had welcomed a child with conservative author and influencer Ashley St. Clair.
- Romulus Musk (Born September 2024): The name Romulus is a classical reference, most famously associated with the mythical founder of Rome.
Decoding the Futuristic Monikers: The Meaning Behind the Unique Names
The names of Musk's children with Grimes and Shivon Zilis are deliberate choices that showcase his passion for science fiction, computing, and historical figures, offering deep topical authority to the discussion.
The Grimes Trilogy: X, Y, and Tau
The names of the children shared with Grimes are perhaps the most famous and complex, designed to be futuristic and symbolic.
- X Æ A-Xii (X): The first part, X, stands for "the unknown variable." The Æ is the Elven spelling of AI, which means both "artificial intelligence" and "love" in some contexts. The A-Xii is a reference to the Lockheed SR-71 Blackbird’s precursor aircraft, the A-12, which they call "Archangel," their favorite plane.
- Exa Dark Sideræl (Y): The daughter’s name is equally complex. Exa refers to exaFLOPs, a unit of supercomputing performance, tying directly into the world of AI and technology. Dark represents "the unknown," particularly dark matter, the mysterious theoretical substance that makes up most of the universe. Sideræl is an Elven spelling of "sidereal," meaning the true time of the universe, connected to the stars and deep space.
- Techno Mechanicus (Tau): Known as "Tau," this name clearly reflects a fusion of technology and engineering. "Techno" refers to technology and "Mechanicus" to mechanics or engineering, aligning with Musk's core business interests.
The Literary and Historical Names: Seldon Lycurgus and Romulus
The names of the newest additions, Seldon Lycurgus and Romulus, pivot from pure futurism to deep literary and historical references.
- Seldon Lycurgus: This name is a clear nod to the world of science fiction and ancient history. Seldon is a direct reference to Hari Seldon, a pivotal character from Isaac Asimov's seminal *Foundation* series, a work Musk has often cited as a major influence on his life and career, particularly in his focus on space travel and civilizational survival. Lycurgus is the legendary lawgiver of Sparta, a figure known for establishing the military-focused social and political structure of ancient Sparta.
- Romulus: The choice of Romulus, the name of the legendary founder of Rome, suggests a theme of building and establishing new civilizations, a concept central to Musk’s vision for Mars. The name is powerful, classical, and speaks to a legacy of creation.
The Future of the Musk Family Lineage
Elon Musk has been an outspoken advocate for increasing the birth rate, often stating that declining populations pose one of the biggest threats to human civilization. His personal life, with 14 children, is a direct reflection of this belief. The continuous expansion of his family, particularly with the recent additions in 2024 and 2025, keeps the public riveted, not just by the sheer number, but by the intellectual depth and conceptual nature of the names chosen.
From the traditional names of his eldest children to the intensely philosophical and sci-fi-inspired names of the younger generation, the Musk lineage is a fascinating study in nomenclature. Each name—whether it’s a simple Saxon or a complex Exa Dark Sideræl—is a deliberate entity, a piece of a larger narrative that blends technology, history, and a vision for the future of humanity.
As his companies like SpaceX and Tesla continue to push the boundaries of technology, the Musk family continues to grow, ensuring that the unique names of his children will remain a topic of global discussion for years to come. The family’s evolution is a dynamic, ongoing story, with the potential for more updates as the years progress.
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