Elon Musk's 14 Children: A Complete List Of Names, Mothers, And The Newest Babies Of 2025

The world's most famous tech mogul, Elon Musk, has once again made headlines with the expansion of his already large family. As of late , the Tesla and SpaceX CEO is officially a father to 14 children, a number that has captivated the public and media alike. The most recent additions, born in late 2024 and early 2025, solidify his position as a proponent of increasing birth rates and a man whose personal life is as ambitious as his professional ventures.

This comprehensive article breaks down the entire Musk family tree, focusing on the newest babies, their unique names, their mothers, and the full biography of the man behind the burgeoning dynasty. From the famously unusual monikers like X Æ A-Xii to the more traditional, here is the definitive guide to the "Musk-eteers."

Elon Musk: A Brief Biography and Paternity Timeline

Elon Reeve Musk is a business magnate, investor, and engineer. He is the founder, CEO, and chief engineer of SpaceX; CEO and product architect of Tesla, Inc.; owner and CTO of X (formerly Twitter); and founder of The Boring Company and XAI. His personal life, particularly his growing family, has become a subject of intense public interest, often intertwining with his stated goal of combating population collapse.

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• Full Name: Elon Reeve Musk
• Date of Birth: June 28, 1971
• Place of Birth: Pretoria, Transvaal, South Africa
• Education: University of Pennsylvania (B.A. in Physics, B.S. in Economics)
• Wives/Partners (with children): Justine Wilson (married 2000–2008), Claire "Grimes" Boucher (partnered 2018–2021), Shivon Zilis (partnered), Ashley St. Clair (partnered)
• Total Known Children: 14 (13 living)
• Notable Companies: SpaceX, Tesla, X (Twitter), Neuralink, The Boring Company, XAI

The Newest Additions: Romulus, Arcadia, and Seldon Lycurgus

The most recent news, confirmed in early 2025, revealed two new mothers and a total of three new children added to the Musk family, bringing the count to 14. These births have quickly become a focal point of discussion, highlighting Musk’s commitment to his views on family and the future of humanity.

The birth of Romulus in late 2024 was the first surprise. Conservative author and influencer Ashley St. Clair announced in February 2025 that she had welcomed a son with the tech billionaire in September 2024. The child's name, Romulus, was later revealed, a name that invokes the legendary founder of Rome, adding another layer of historical and literary reference to the Musk children's unique naming convention.

Shortly after, the public learned of two more children with Neuralink executive Shivon Zilis. Zilis, who already shares twins with Musk, quietly welcomed a daughter named Arcadia and a son named Seldon Lycurgus. The names, particularly Seldon Lycurgus, are highly unusual and continue the trend of complex, often science-fiction-inspired names. The addition of Arcadia and Seldon brings the total number of children shared between Musk and Zilis to four, further cementing their co-parenting relationship.

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A Complete Roster: All 14 Children of Elon Musk

Elon Musk's family is a complex, modern structure, involving four different mothers and a wide range of ages. The children's names often reflect Musk's interests in mathematics, philosophy, and science fiction.

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 first son tragically passed away, but they later had twins and triplets via IVF.

• Nevada Alexander Musk (2002): Tragically died of SIDS at 10 weeks old.
• Griffin Musk (b. 2004): Twin son.
• Vivian Jenna Wilson (b. 2004): Twin daughter, who legally changed her name in 2022.
• Kai Musk (b. 2006): Triplet son.
• Saxon Musk (b. 2006): Triplet son.
• Damian Musk (b. 2006): Triplet son.

Children with Grimes (Claire Boucher) (3 Children)

Musk’s relationship with musician Grimes has produced three children, all known for their highly unconventional, alphanumeric, and symbolic names.

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• X Æ A-XII Musk (b. 2020): Nicknamed "X." The name is a nod to the "X" factor, the elven spelling of AI, and the SR-71 Blackbird aircraft (A-12).
• Exa Dark Sideræl Musk (b. 2021): Nicknamed "Y." Born via surrogate. Her name is a combination of supercomputing, the unknown, and "sideræl" (star-time).
• Techno Mechanicus Musk (b. 2023): Nicknamed "Tau." His birth was revealed in Walter Isaacson's biography of Musk.

Children with Shivon Zilis (4 Children)

Shivon Zilis is a top executive at Musk's Neuralink company. The pair share four children, with the two most recent additions announced in 2025.

• Strider (b. 2021): Twin son. Born shortly before Exa Dark Sideræl.
• Azure (b. 2021): Twin daughter.
• Arcadia (b. 2024/2025): Daughter, one of the two most recent additions.
• Seldon Lycurgus (b. 2024/2025): Son, the most recent addition. The name "Seldon" is a possible reference to Hari Seldon, a character in Isaac Asimov's Foundation series.

Child with Ashley St. Clair (1 Child)

The newest mother in the Musk family, conservative influencer Ashley St. Clair, welcomed her son in late 2024.

• Romulus (b. 2024): Son. His name was revealed in early 2025.

The Philosophical Intent Behind a Large Family

The continuous growth of Elon Musk's family is not merely a matter of personal choice; it is deeply rooted in his publicly stated philosophical beliefs. Musk has repeatedly voiced concerns about a global "population collapse," arguing that declining birth rates pose one of the greatest risks to the future of human civilization.

He views having a large family as a personal and civic duty, setting an example for the "smart people" he believes should be having more children. This intention is often cited as the driving force behind his co-parenting relationships with highly intelligent women like Shivon Zilis, a Yale graduate and expert in AI. His actions, therefore, are seen by many as a real-world application of his futurist and demographic theories, making each new birth a public statement about the future of humanity.

The unusual names—from X Æ A-Xii to Seldon Lycurgus—also reflect this futurist and intellectual bent. They are not random but are often drawn from science, mythology, and science fiction, suggesting that Musk views his children as part of a legacy that extends beyond the present day. The names serve as a constant reminder that the Musk family is, in many ways, an experiment in future-proofing the human race.

Public and Media Reaction to the Expanding Musk Clan

The news of each new arrival, particularly the recent additions of Romulus, Arcadia, and Seldon Lycurgus, generates an immediate and polarized public reaction. On one side, he is praised for actively promoting his beliefs and building a large, modern family. Supporters view him as a visionary whose personal life mirrors his grand ambitions for humanity's future on Earth and beyond.

On the other side, critics often question the complexities of a multi-mother, multi-home family structure. The sheer number of children, the secrecy surrounding some of the births, and the unique naming conventions all contribute to the public fascination and scrutiny. Regardless of the viewpoint, one thing is certain: Elon Musk’s growing family is one of the most compelling and closely watched family sagas of the 21st century, and the world will continue to monitor the future of the "Musk-eteers."