The Full Count: How Many Children Does Elon Musk Have Now? (The Shocking 14-Child List For 2025)

The number of children fathered by tech billionaire Elon Musk has consistently been a topic of intense global curiosity, and as of early December 2025, that number has reached an astonishing 14. This figure makes the Tesla CEO and SpaceX founder one of the world’s most prolific public figures in terms of family size, a fact he has often linked to his public concerns about declining birth rates and "underpopulation." The most recent additions to his family, born in late 2024 and early 2025, have once again placed his unique family structure under the spotlight, confirming the birth of two new sons with two different partners.

The journey of the Musk family tree is complex, spanning over two decades and involving four different mothers, each with a unique story and relationship with the entrepreneur. From the tragic loss of his firstborn son to the use of unconventional, code-like names for his youngest, the details of his growing family are as fascinating as his ventures into space and artificial intelligence. This complete, up-to-date list breaks down the 14 children of Elon Musk, their mothers, and the context of their births.

The Definitive List of Elon Musk’s 14 Children and Their Mothers (2025 Update)

Elon Musk's family is a modern tapestry, woven from his relationships with author Justine Wilson, musician Grimes, Neuralink executive Shivon Zilis, and conservative influencer Ashley St. Clair. The current total of 14 children includes one son who tragically passed away in infancy. The list below is organized by the mother and the chronological order of birth.

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1. Children with Justine Wilson (6 Children, 5 Living)

Justine Wilson, a Canadian author, was Elon Musk’s first wife. They were married from 2000 to 2008 and had six children together. Their family’s start was marked by tragedy, followed by the birth of a large set of multi-birth siblings.

• Nevada Alexander Musk (Deceased): Born in 2002, Nevada tragically died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. His death was a formative and painful experience for both parents.
• Griffin Musk & Vivian Jenna Wilson (Twins): Born in 2004 via IVF. Vivian, who was formerly known as Xavier, legally changed her name and gender identity in 2022, choosing to take her mother's maiden name, Wilson, and distancing herself from her biological father.
• Kai Musk, Saxon Musk, & Damian Musk (Triplets): Born in 2006, also via IVF. The triplets are now young adults, with their names often appearing in the context of their high-profile father's life.

2. Children with Grimes (3 Children)

Claire Boucher, known professionally as Grimes, is a Canadian musician and artist. Her relationship with Musk, which began in 2018 and has been on-again, off-again, is known for its highly unconventional approach to naming their children.

• X Æ A-Xii (X): Born in May 2020, his original name, X Æ A-12, had to be legally changed due to California law, which only allows the 26 letters of the English alphabet in a name. He is affectionately known as 'X'.
• Exa Dark Sideræl Musk (Y): Born via surrogate in December 2021. Her name is a combination of references to supercomputing terminology ("Exa"), the unknown ("Dark"), and the "true time of the universe" ("Sideræl"). She is often called 'Y'.
• Techno Mechanicus (Tau): The birth of their third child was revealed in Walter Isaacson's 2023 biography of Musk. Known as 'Tau', his highly technical name fits the pattern established by his older siblings.

The Newest Additions: Four Children in the Last Two Years

The most significant increase in the Musk family size has occurred in the last few years, reflecting Musk's vocal stance on the need for high-IQ individuals to have more children to combat civilizational decline. The latest births have not only pushed the total count to 14 but also introduced two new mothers to the public record, generating significant media buzz and discussion about his personal life and "breeding program" philosophy.

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3. Children with Shivon Zilis (4 Children)

Shivon Zilis is a high-ranking executive at Neuralink, one of Musk’s companies, and a prominent figure in the artificial intelligence community. She and Musk have four children together, with the fourth being one of the most recent additions to the family. Their relationship is described as a professional co-parenting arrangement.

• Strider Zilis & Azure Zilis (Twins): Born in November 2021, just weeks before Exa Dark Sideræl was born to Grimes. Their birth was kept private until it was revealed in court documents in 2022. They share their mother's last name as their middle name.
• Arcadia Zilis (Daughter): Born in 2024, her name was revealed in early 2025 reports.
• Seldon Lycurgus Musk (Son): Born in late 2024/early 2025, his birth was publicly announced by Zilis on X (formerly Twitter). His name is speculated to be a reference to characters from Isaac Asimov's Foundation series and the Spartan lawgiver Lycurgus, aligning with Musk's interest in foundational texts and societal structure.

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

Ashley St. Clair, a conservative commentator and influencer, was revealed in early 2025 to be the mother of Musk's 14th child. This addition further cemented the total count and added a fourth mother to the family roster.

• Romulus Musk (Son): Born in late 2024/early 2025. The name Romulus is a direct reference to the legendary founder of Rome, a name choice that aligns with Musk's historical and civilizational interests.

The Growing Legacy: Why the Number 14 Matters

The fact that Elon Musk now has 14 children is not just a personal detail; it is a direct reflection of his public advocacy for increased global fertility rates. He has repeatedly stated that he is "doing his part" to address what he views as a major threat to civilization: population collapse. This belief is a central theme in many of his interviews and social media posts, making the size of his family a political and philosophical statement as much as a personal one.

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The names of his children—from the classical and historical (Romulus, Lycurgus, Damian) to the futuristic and conceptual (X Æ A-Xii, Exa Dark Sideræl)—provide a fascinating glimpse into the mind of the man behind Tesla and SpaceX. They are a blend of ancient history, science fiction, and technical jargon, creating a unique and memorable lineage that is unlike any other public figure's family today. The ongoing story of the Musk children, or "Musk-eteers" as they are sometimes called, will undoubtedly continue to evolve as the world watches the upbringing of this unprecedented modern family.

Musk's Co-Parenting Philosophy and Public Statements

Despite the complexity of having children with four different women, reports suggest that Musk maintains a co-parenting network, ensuring that his children are connected and that he is actively involved in their lives. He has been quoted emphasizing the importance of a hands-on approach, even with his demanding schedule. The arrangement with Shivon Zilis, for example, is described as a co-parenting partnership focused on the children's well-being and future, rather than a traditional romantic relationship. This modern, decentralized approach to family management is, in its own way, a reflection of the decentralized, innovative spirit of his companies. As the world moves through 2025, the count of 14 children remains the latest, definitive number in the ever-expanding saga of the Musk dynasty.