The Complete List Of Elon Musk’s 14 Children: Names, Mothers, And The Meaning Behind The Unconventional

Billionaire entrepreneur Elon Musk has made global headlines not only for his revolutionary work with Tesla, SpaceX, and X (formerly Twitter) but also for his rapidly expanding family. As of the latest reports in late 2024 and early 2025, the tech mogul is a father to an astonishing 14 children, a number that solidifies his position as one of the most prolific parents in the public eye. This expansive family, shared across four different partners, is a topic of intense public fascination, driven by the children's unique names and the complex family dynamics.

The latest updates, including the revelation of a new child's name in early 2025, confirm the final count of 14 children, highlighting Musk's personal mission to address what he perceives as a global underpopulation crisis. From traditional names like Griffin and Vivian to the highly unconventional, almost algorithmic monikers like X Æ A-Xii and Techno Mechanicus, the list of Elon Musk's children's names is a journey through science, mythology, and futuristic concepts.

Elon Musk: A Brief Biography and Profile

Elon Reeve Musk is a South African-born businessman, investor, and engineer who has become one of the most influential figures in modern technology and space exploration. Born on June 28, 1971, in Pretoria, South Africa, his life story is one of ambitious vision and relentless execution.

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• Full Name: Elon Reeve Musk
• Date of Birth: June 28, 1971
• Place of Birth: Pretoria, South Africa
• Education: University of Pennsylvania (B.A. in Physics, B.S. in Economics)
• Current Roles: CEO of Tesla, CEO of SpaceX, Owner and CTO of X (formerly Twitter), Founder of The Boring Company, Co-Founder of Neuralink and xAI.
• Net Worth: Consistently ranked among the world's wealthiest individuals.

The Complete List of Musk’s 14 Children and Their Mothers

Elon Musk has fathered 14 children with four different 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 list details all 14 children in chronological order of birth, providing a comprehensive overview of the Musk family tree.

1. Children with Justine Wilson (6 Children)

Musk’s first foray into fatherhood was with his first wife, Justine Wilson. They married in 2000 and had six children together before divorcing in 2008.

• Nevada Alexander Musk (2002): The couple’s first child, Nevada, tragically died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old.
• Griffin Musk (Born 2004): One half of the first set of twins, born via IVF.
• Vivian Jenna Wilson (Born 2004): Griffin’s twin sister. Vivian legally changed her name in 2022 to reflect her mother’s surname, Wilson, and embrace her gender identity.
• 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.

2. Children with Grimes (3 Children)

Musk’s relationship with the Canadian musician Grimes has produced three children, all of whom share the most highly publicized and unconventional names.

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• X Æ A-Xii Musk (Born 2020): Originally named X Æ A-12, the name was later slightly adjusted due to California state regulations. He is affectionately nicknamed "X."
• Exa Dark Sideræl Musk (Born 2021): Born via surrogate, her name is often shortened to "Y."
• Techno Mechanicus Musk (Born 2022): The existence of this third child, nicknamed "Tau," was revealed in the 2023 biography of Elon Musk by Walter Isaacson.

3. Children with Shivon Zilis (4 Children)

Shivon Zilis, a top executive at Musk's company Neuralink, has four children with the billionaire. Their first two children were twins, born in November 2021, just weeks before his second child with Grimes was born. The existence of the four children was confirmed in subsequent reports.

• Strider Musk (Twin, Born 2021): One of the first set of twins with Zilis.
• Azure Musk (Twin, Born 2021): The other twin, sharing the middle name Zilis.
• Arcadia Musk (Date Unknown): One of the two additional children confirmed to be born to the couple.
• Seldon Musk (Date Unknown): The fourth child with Zilis, completing the group of four.

4. Child with Ashley St. Clair (1 Child)

The newest addition to the Musk family was confirmed in early 2025. Conservative author and influencer Ashley St. Clair announced the birth of her child with Musk, who was born in September 2024.

• Romulus St. Clair (Born 2024): The child's name, 'Romulus,' was revealed in subsequent reports. Romulus is a strong, historical name, referring to one of the legendary founders of Rome.

Decoding the Unconventional: The Meaning Behind the Names

While the children with Justine Wilson and Shivon Zilis generally carry more traditional or classical names (Griffin, Saxon, Strider, Azure), the three children with Grimes are renowned for their cryptic, futuristic, and science-fiction-inspired monikers. These names embody the parents' shared fascination with technology, space, and artificial intelligence.

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The Meaning of X Æ A-Xii (X)

The first child with Grimes, X Æ A-Xii, sparked a global naming debate. Grimes herself offered a full breakdown of the name's components:

• X: Symbolizes "the unknown variable."
• Æ: The "elven spelling" of AI, which stands for love and/or artificial intelligence.
• A-Xii: Refers to the Lockheed SR-71 Blackbird's predecessor, the A-12 Archangel, which the couple described as their favorite aircraft.

The Meaning of Exa Dark Sideræl (Y)

The name of their daughter, Exa Dark Sideræl, is equally rooted in technological and astronomical concepts.

• Exa: A reference to "exaFLOPS," a supercomputing term for the ability to perform one quintillion floating-point operations per second.
• Dark: Represents "the unknown," the dark matter and dark energy that dominate the universe.
• Sideræl: Pronounced "sigh-deer-ee-elle," this is described as "the true time of the universe" and a nod to the elven language.

The Meaning of Techno Mechanicus (Tau)

The third child, Techno Mechanicus, continues the trend of blending science and futurism. His nickname, Tau, has a specific mathematical origin.

• Tau: A Greek letter used in mathematics, often associated with the constant $2\pi$ (two times pi), a concept favored by Musk over the traditional pi ($\pi$).
• Techno Mechanicus: A clear reference to technology and mechanisms, reflecting Musk's life's work in engineering and robotics.

The sheer size and complexity of Elon Musk's family, coupled with the unique naming conventions, ensure that his private life remains as much a subject of public interest as his groundbreaking ventures in space and electric vehicles. His growing number of children is a tangible manifestation of his outspoken views on the importance of human procreation for the future of civilization.