The Definitive List Of Elon Musk's 14 Children: Names, Mothers, And The Meaning Behind The Most Bizarre
Billionaire entrepreneur Elon Musk, the CEO of Tesla, SpaceX, and X, has captured global attention not only for his ambitious technological ventures but also for his rapidly expanding family. As of December 2025, the total number of his children stands at a staggering 14, shared with four different women, making his family one of the most publicly discussed and complex in the world. This comprehensive guide breaks down the full list of names, the mothers, and the latest news surrounding the newest additions to the Musk dynasty, including the recently confirmed child with commentator Ashley St. Clair.
The names of his children range from traditional to the truly avant-garde, reflecting the tech mogul's unique and often controversial public persona. From the tragic loss of his first son, Nevada Alexander, to the headline-grabbing nomenclature of X Æ A-Xii and Exa Dark Sideræl, the story of the Musk children is a fascinating blend of personal tragedy, biological ambition, and pop culture spectacle.
Elon Musk: A Brief Biography and Family Overview
Before diving into the names, it is essential to understand the man behind the expanding family. Elon Reeve Musk was born on June 28, 1971, in Pretoria, South Africa, making him 54 years old in late 2025.
As one of the world's wealthiest individuals, with a net worth estimated in the hundreds of billions of dollars, Musk has continuously stated his belief in the importance of population growth and his personal mission to combat what he perceives as a global birth rate crisis.
His family life has been a subject of intense media scrutiny, centered on his relationships with the four mothers of his children: his first wife, Justine Wilson; the electronic musician Grimes (Claire Boucher); Neuralink executive Shivon Zilis; and most recently, right-wing commentator Ashley St. Clair.
The Complete List of Elon Musk's 14 Children and Their Mothers (Chronological)
The following is the definitive, chronological list of Elon Musk's 14 children, detailing their names, birth years, and mother, based on the latest reports and public confirmations as of late 2025.
Children with Justine Wilson (6 Children)
Musk's first wife, Canadian author Justine Wilson, is the mother of his first six children, all conceived via IVF. Their first child tragically passed away, followed by twins and then triplets.
- Nevada Alexander Musk (2002): Tragically died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. His death remains a deeply personal event that shaped Musk's view on life.
- Griffin Musk (2004): One half of the first set of twins.
- Vivian Jenna Musk (2004): Born as Xavier Alexander, she legally changed her name and gender in 2022, choosing the name Vivian Jenna Musk and stating she no longer wished to be related to her biological father.
- Kai Musk (2006): One of the triplets.
- Saxon Musk (2006): One of the triplets.
- Damian Musk (2006): One of the triplets.
Children with Grimes (3 Children)
Musician Grimes, whose real name is Claire Boucher, is the mother of three of Musk's children, all known for their highly unconventional names that often incorporate elements of technology, space, and elven language.
- X Æ A-Xii Musk (Born 2020): Originally named X Æ A-12, the name was later legally modified to use Roman numerals to comply with California law. The name is pronounced "X Ash A Twelve." The "A-12" refers to the Lockheed A-12 Archangel, a reconnaissance aircraft.
- Exa Dark Sideræl Musk (Born 2021): Known by the nickname 'Y,' Exa Dark Sideræl was born via surrogate. Her full name is a nod to a supercomputing term ("Exa"), the unknown ("Dark"), and a more poetic, elven spelling of "sidereal," meaning "of the stars."
- Techno Mechanicus Musk (Born 2022): Known by the nickname 'Tau,' news of his birth was revealed in a 2023 biography of Musk. The name continues the pattern of technological and mechanical references.
Children with Shivon Zilis (4 Children)
Shivon Zilis, a Canadian executive at Musk's company Neuralink, is the mother of four of his children. The relationship was revealed publicly in 2022 when court documents showed they had filed to change the twins' names to include Musk's surname.
- Strider (Born 2021): One of the twins, born just weeks before Exa Dark Sideræl.
- Azure (Born 2021): The other twin.
- Arcadia (Born 2024): Reported as one of the latest additions in 2024.
- Seldon Lycurgus (Born 2024): Reported alongside Arcadia as a 2024 addition. The names Arcadia and Seldon Lycurgus are highly unique and have been linked to classical philosophy and science fiction, specifically the works of Isaac Asimov.
Child with Ashley St. Clair (1 Child)
In a major development in late 2024 and early 2025, right-wing commentator Ashley St. Clair publicly announced the birth of her son with Musk, with paternity confirmed via a Labcorp report. This brought the total count of Musk's children to 14.
- Romulus (Born 2024): Named Romulus, the child was born in September 2024. The name is a direct reference to Romulus, the mythical founder of Rome, fitting the pattern of grand, historical, or mythological names.
The Curious Case of the Musk Children's Names
The names of Elon Musk's children have become a cultural phenomenon, sparking endless debate and curiosity. The shift from the traditional names of his children with Justine Wilson to the esoteric, code-like monikers with Grimes, and the classical/sci-fi references with Shivon Zilis and Ashley St. Clair, highlights the different influences in his life.
The names X Æ A-Xii and Exa Dark Sideræl are perhaps the most famous. 'X' is a nod to the unknown variable, 'Æ' (Ash) is an elven spelling of "Ai" (love and/or Artificial Intelligence), and 'A-Xii' is a reference to the Archangel 12, a high-performance aircraft. Grimes has explained that the names are an attempt to create a unique identity that is not bound by traditional naming conventions.
The more recent names, such as Techno Mechanicus, Arcadia, Seldon Lycurgus, and Romulus, continue to lean into the themes of technology, classicism, and futurism. Techno Mechanicus is a clear nod to the mechanical and engineering world, while Seldon Lycurgus is a deep-cut reference to the character Hari Seldon from Isaac Asimov's Foundation series and the Spartan lawgiver Lycurgus, blending science fiction with ancient history.
The Future of the Musk Family Dynasty
With 13 living children and a stated personal philosophy that views having a large family as a duty to humanity, the Elon Musk family tree is unlikely to stop growing. The complexity of managing a family across four different partners, each with their own public profile, has created a unique dynamic.
The public's fascination with the names—from the classic and tragic Nevada Alexander to the bold, modern statement of Vivian Jenna, and the futuristic complexity of X Æ A-Xii—is a testament to Musk's ability to turn even his most personal life choices into a global conversation. The ongoing story of the 14 Musk children, their unique names, and their diverse mothers will undoubtedly continue to be a source of news and curiosity for years to come.
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