The Full Count: How Many Children Does Elon Musk Have Now? (Latest 2025 Update)

As of December 2025, the definitive and most current count of Elon Musk's children is 14. This number has rapidly expanded and evolved over the last two years, solidifying the Tesla and SpaceX CEO’s position as a staunch advocate for increasing the birth rate to save civilization. The most recent revelations in early 2025 confirmed the birth of two new children with Neuralink executive Shivon Zilis and a reported child with conservative influencer Ashley St. Clair, bringing the total number of mothers to four and the family count to a staggering 14.

This comprehensive breakdown provides the full list of all 14 children, their mothers, their unique names, and the latest details on the newest additions to the Musk family. The tech mogul’s growing family is a highly discussed topic, with each birth often accompanied by a cryptic or highly unusual name, reflecting a life lived on the cutting edge of technology and culture.

The Mothers of Elon Musk’s 14 Children: A Complete Profile

Elon Musk has fathered 14 children with four different women. Each relationship has been notable, bringing forth unique personalities and professional backgrounds, from a Canadian fantasy author to a top executive in his own AI companies.

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• Justine Wilson (First Wife & Mother of 6)

  Jennifer Justine Musk (née Wilson) is a Canadian author specializing in dark urban fantasy novels. She is Musk’s first wife, having married him in January 2000. Her notable works include the novels BloodAngel (2005) and Uninvited (2007). She is the mother of Musk's first six children: Nevada, twins Griffin and Vivian, and triplets Kai, Saxon, and Damian. The couple divorced in 2008.

• Grimes (Claire Boucher) (Mother of 3)

  Claire Elise Boucher, known professionally as Grimes, is a highly influential Canadian musician, singer, songwriter, and record producer. Her experimental music blends electronic, pop, and art-pop genres, often exploring themes of science fiction and technology. Her relationship with Musk began in 2018. They share three children, each with a famously unique name.

• Shivon Zilis (Mother of 4)

  Shivon Zilis is a Canadian venture capitalist and a key executive in Musk’s AI empire. She serves as the Director of Operations and Special Projects at Neuralink and was a former board member at OpenAI. An expert in artificial intelligence, Zilis has a background from Yale and is a fellow at the Creative Destruction Lab. She shares four children with Musk, making her the mother of the newest confirmed additions.

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• Ashley St. Clair (Reported Mother of 1)

  Ashley St. Clair is an American conservative political commentator, author, and social media influencer, known for her right-wing political commentary and media presence. She has gained significant attention following reports in late 2024 and early 2025 claiming she is the mother of Musk's 14th child, Romulus.

A Chronological Look at All 14 Musk Children

The Musk family tree began in 2002 and has seen a rapid expansion in recent years, with a total of 14 children born to four mothers. The following is the complete list of all 14 children in chronological order of birth, including the new additions revealed in 2024 and 2025.

Children with Justine Wilson (6 Children)

• Nevada Alexander Musk (b. 2002): The first child, Nevada tragically passed away from SIDS (Sudden Infant Death Syndrome) at 10 weeks old.
• Griffin Musk & Vivian Jenna Wilson (b. 2004): Twins, born via IVF. Vivian, formerly known as Xavier, legally changed her name in 2022 to reflect her gender identity and to distance herself from her father.
• Kai Musk, Saxon Musk, & Damian Musk (b. 2006): Triplets, also born via IVF. They are all currently in their late teens.

Children with Grimes (3 Children)

• X Æ A-Xii Musk (b. May 2020): Originally named X Æ A-12, the name was slightly altered to comply with California law, which prohibits numbers in a name. He is affectionately known as "X."
• Exa Dark Sideræl Musk (b. December 2021): Known as "Y" or "Sideræl," she was born via surrogate. Her name is a nod to the terms Exa (a supercomputing term), Dark (the unknown), and Sideræl (a more elegant spelling of sidereal, meaning true time of the universe).
• Techno Mechanicus Musk (b. 2022): Affectionately nicknamed "Tau," the birth of the third child with Grimes was kept private until the September 2023 release of Walter Isaacson’s biography on Elon Musk.

Children with Shivon Zilis (4 Children)

The four children with Shivon Zilis were born in quick succession, highlighting the couple’s shared belief in the importance of a high birth rate.

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• Strider Musk & Azure Musk (b. November 2021): Boy-girl twins born just weeks before the birth of Exa Dark Sideræl (Musk's second child with Grimes).
• Arcadia Musk (b. February 2024): The third child with Zilis, Arcadia's birth was revealed in early 2024. The name continues the trend of unique, abstract monikers.
• Seldon Lycurgus Musk (b. TBD, revealed Feb 2025): The fourth child with Zilis, Seldon was revealed in early 2025. His name, particularly "Lycurgus," is a reference to historical or literary figures, a common theme in Musk's naming choices.

Children with Ashley St. Clair (Reported 1 Child)

• Romulus Musk (b. September 2024): Reports surfaced in late 2024 that conservative influencer Ashley St. Clair had given birth to a child she claimed was fathered by Elon Musk. The child's reported name is Romulus, referencing the legendary founder of Rome, which would be Musk’s 14th child.

The Philosophy Behind Elon Musk’s Large Family

The expansion of Elon Musk’s family is not just a personal matter; it is tied directly to his public statements on global demographics and the future of humanity. Musk has frequently expressed concern over what he calls the "underpopulation crisis" and the declining birth rate in developed nations, viewing it as one of the biggest threats to civilization.

His belief is that a higher birth rate is essential for the long-term survival and prosperity of the human race, a conviction he has clearly put into practice. This philosophy provides the context for his growing family, making him a living example of his own demographic theories.

Musk’s Stance on the Declining Birth Rate

Musk often uses his X (formerly Twitter) platform to amplify his views, arguing that people should have more children to ensure humanity's future. He has stated that "falling birth rate is a much bigger risk to civilization than global warming." This perspective frames his decision to have a large family as a matter of civic and even existential duty, not just a personal choice. This controversial stance has sparked significant debate among demographers and the public alike.

The Role of Unique Names and Privacy

The highly unusual names of his children, such as X Æ A-Xii and Techno Mechanicus, have become a trademark of the Musk-Grimes relationship, often drawing headlines and social media scrutiny. While the names are unconventional, they typically carry deep, often esoteric meanings related to technology, science, and philosophy.

Despite his public persona, Musk has been fiercely protective of his children’s privacy, especially the younger ones and those born to Shivon Zilis and Ashley St. Clair. The births of his most recent children were often kept secret for months or even years, only being revealed through court documents, biographical books, or the parents' own social media posts, demonstrating a complex balance between public advocacy for a larger family and a desire for personal secrecy.

In conclusion, Elon Musk's family life is as dynamic and rapidly expanding as his business empire. With 14 children and four mothers, the story of his family is a testament to his personal philosophy and a constant source of global fascination, with the total count continually subject to the latest news and revelations.