The Full Lineup: A Chronological Look At Elon Musk's 14 Children And Their Mothers

The question of "How many children does Elon Musk have?" is a constantly evolving one, given the billionaire entrepreneur's public commitment to addressing declining birth rates and his rapidly expanding family. As of the current date in 2025, the most recent reports confirm that the Tesla and SpaceX CEO is the father of a remarkable 14 children, whom he has welcomed with four different women. This staggering number has cemented his status as one of the most prolific fathers in the public eye, often sparking global discussion about his personal life, his philosophy on family, and the future of humanity.

The latest additions to his family, including a child born in late 2024 and another recently announced in early 2025, have pushed the total count to 14, making his family tree arguably the most complex and fascinating in modern tech history. This detailed, chronological breakdown provides a definitive look at every child, their mother, and the unique circumstances of their birth, offering a fresh, up-to-date perspective on the "Musk-eteers."

Elon Musk: A Brief Biography and Family Overview

Elon Reeve Musk, born on June 28, 1971, in Pretoria, South Africa, is one of the world's most influential and wealthiest individuals. His professional life is defined by his leadership in revolutionary companies across multiple sectors, including electric vehicles (Tesla), aerospace (SpaceX), social media (X, formerly Twitter), and artificial intelligence (xAI).

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While his business ventures aim to colonize Mars and accelerate sustainable energy, his personal mission has often focused on population growth. Musk has publicly stated his concern over "underpopulation," which he views as a far greater threat to civilization than climate change, a philosophy that appears to be reflected in the size of his own family. His children, often referred to in media as the "Musk-eteers," are a central part of his personal narrative.

The Four Mothers of Elon Musk's Children

Musk has welcomed his 14 children with four different women, each relationship spanning a distinct period of his life and career. This unique family structure is a key element of the ongoing public interest.

• Justine Wilson (5 Children): A Canadian author and his first wife. They were married from 2000 to 2008.
• Grimes (3 Children): Claire Boucher, a Canadian musician and artist. Their on-again, off-again relationship began in 2018.
• Shivon Zilis (5 Children): A Canadian executive at Neuralink and xAI and a close professional associate.
• Ashley St. Clair (1 Child): A social media personality and commentator. This relationship came to light with the birth of their son in late 2024.

The Definitive List: All 14 of Elon Musk's Children in Chronological Order

The following list details the births of all 14 children, starting with his first son in 2002 and concluding with the most recent addition in 2025. The children's ages span from infants to young adults, reflecting over two decades of fatherhood.

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1. Nevada Alexander Musk (b. 2002)

   Mother: Justine Wilson. Nevada was the couple's first child, born in 2002. Tragically, he died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. His passing was a profound loss that led the couple to pursue in vitro fertilization (IVF) for their subsequent children.

2. Vivian Jenna Wilson (b. 2004) & Griffin Musk (b. 2004)

   Mother: Justine Wilson. Two years after Nevada's death, Justine and Elon welcomed twin sons, Griffin and Xavier, via IVF in April 2004. In 2022, Xavier legally changed her name to Vivian Jenna Wilson, choosing to adopt her mother's maiden name and distancing herself from her biological father.

3. Kai Musk (b. 2006), Saxon Musk (b. 2006), & Damian Musk (b. 2006)

   Mother: Justine Wilson. The family expanded once more in 2006 with the birth of triplet sons, Kai, Saxon, and Damian, also conceived through IVF. This brought the total number of children with Justine Wilson to five surviving children.

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4. X Æ A-Xii Musk (X) (b. 2020)

   Mother: Grimes (Claire Boucher). X, pronounced "X Ash A Twelve," was born in May 2020. His unconventional name became an instant global sensation and a symbol of Musk's unique approach to life. The name's original spelling had to be altered slightly to comply with California state law.

5. Strider Zilis Musk (b. 2021) & Azure Zilis Musk (b. 2021)

   Mother: Shivon Zilis. In a largely private affair that was later revealed in court documents, Musk and Neuralink executive Shivon Zilis welcomed twins, Strider and Azure, in November 2021. Their birth was part of Musk's strategy to address what he calls the "underpopulation crisis."

6. Exa Dark Sideræl Musk (Y) (b. 2021)

   Mother: Grimes (Claire Boucher). Born via surrogate in December 2021, just one month after the twins with Zilis, Exa Dark Sideræl—nicknamed "Y"—was another child with an esoteric name. Exa refers to a supercomputing term, Dark to the unknown, and Sideræl to "the true time of the universe."

7. Techno Mechanicus (Tau) (b. 2023)

   Mother: Grimes (Claire Boucher). The third child with Grimes, nicknamed "Tau," was revealed in a biography of Musk published in September 2023. Like his siblings, his name is a nod to science and technology, bringing the total number of children with Grimes to three.

8. Arcadia (b. 2024)

   Mother: Shivon Zilis. In a quiet, unannounced birth, Shivon Zilis welcomed a third child with Musk, a daughter named Arcadia, in 2024. The birth was only confirmed later, adding to the complexity and surprise of the family's growth.

9. Romulus St. Clair (b. 2024)

   Mother: Ashley St. Clair. In late 2024, social media personality Ashley St. Clair gave birth to a son, Romulus, whom she confirmed was fathered by Elon Musk. The news of this child, named after the legendary founder of Rome, was one of the most unexpected revelations in the ongoing saga of Musk's family.

10. Unnamed Child (b. 2025)

    Mother: Shivon Zilis. The most recent addition to the family was announced in early 2025, when Shivon Zilis confirmed the birth of her fourth child with Musk. This birth brings the total number of children with Zilis to four, and the overall total for Elon Musk to 14.

The Philosophical and Cultural Impact of Musk's Large Family

Elon Musk's family size is not merely a celebrity headline; it is a reflection of his deepest-held beliefs about humanity's future. His consistent message is that a declining birth rate is an existential risk, and his personal choices serve as an example of what he believes the world needs to combat this demographic trend.

Topical Authority: The 'Underpopulation Crisis' Entity

The concept of the "underpopulation crisis" is a core entity in the discourse surrounding Elon Musk's family. He argues that most people are operating under the false premise that the world is overpopulated, when in reality, the global fertility rate is below the replacement level. By continually expanding his own family, Musk is acting on his belief that having children is a moral necessity for the long-term survival and prosperity of civilization. This philosophy is often cited alongside his ventures like SpaceX's Mars colonization efforts, as both are long-term solutions to existential risks.

The Naming Conventions and Public Identity

The names of his children—ranging from traditional (Griffin, Damian, Kai) to the highly experimental and technical (X Æ A-Xii, Exa Dark Sideræl, Techno Mechanicus)—reflect the dual nature of his life: grounded family life and futuristic, sci-fi ambition. The public fascination with names like "X" and "Y" has introduced new LSI keywords into the cultural lexicon, linking his children directly to his tech companies and his personal brand of futurism. The choice of Vivian Jenna Wilson to legally change her name also highlights the complex dynamics within the family and the children's own journey in establishing their identity separate from their famous father.

The Role of Surrogacy and IVF in Modern Family Planning

Musk's family history is also a testament to the advancements in modern reproductive technology. Following the tragic loss of his first son, he and Justine Wilson utilized IVF to have twins and then triplets. Later, his second child with Grimes, Exa Dark Sideræl, was born via a surrogate. These details not only complete the family picture but also add topical authority by highlighting the role of assisted reproductive technologies (ART) in the creation of large, modern families, particularly among the ultra-wealthy. This aspect is crucial for understanding the chronological expansion of the Musk family tree.

Conclusion: The Legacy of a Prolific Father

With 14 children spanning two decades and four mothers, Elon Musk's family is a powerful symbol of his personal ideology and his unique place in the modern world. The recent, rapid expansion of his family in 2024 and 2025 with Shivon Zilis and the surprising addition with Ashley St. Clair ensures that the total count remains a topic of intense, ongoing interest. Whether viewed as an eccentric act of a billionaire or a genuine effort to combat a global demographic decline, Musk’s commitment to fatherhood is undeniable. His "Musk-eteers" are a living, breathing component of his legacy, a testament to his belief that the future is worth populating, both on Earth and potentially beyond. The world will undoubtedly continue to watch and count the next chapter in the life of this fascinating, ever-growing family.