The Musk-eteers: A Chronological List Of Elon Musk's 14 Children And Their Mothers (Updated 2025)

Elon Musk, the billionaire CEO of Tesla, SpaceX, and X, is known for his revolutionary business ventures, but as of December 18, 2025, his family life has become just as headline-grabbing. The tech titan is the father of a reported 14 children, shared with four different women. This rapidly expanding family is not just a personal matter; it is intrinsically linked to Musk's public philosophy on global population decline, making the "Musk-eteers" a subject of intense global curiosity. The most recent updates in early 2025 confirmed the birth of two new children, bringing his total count to 14: a son named Romulus with author and influencer Ashley St. Clair, and another son, Seldon Lycurgus, with Neuralink executive Shivon Zilis. This latest news solidifies Musk's position as one of the most prolific fathers among modern-day business leaders.

Elon Musk: A Brief Biographical Profile

Before diving into the details of his family, understanding the man at the center of this story provides essential context. Elon Musk's life is a series of high-stakes entrepreneurial endeavors and ambitious, often controversial, public statements.

• Full Name: Elon Reeve Musk
• Born: June 28, 1971, in Pretoria, South Africa
• Education: University of Pennsylvania (B.A. in Physics, B.S. in Economics)
• Key Companies Founded/Led:
  • Zip2 (1995)
  • X.com (later PayPal, 1999)
  • SpaceX (2002)
  • Tesla (2004)
  • Neuralink (2016)
  • The Boring Company (2016)
  • X (formerly Twitter, 2022)
  • xAI (2023)
• Public Stance: Fierce advocate for multi-planetary life and a vocal critic of declining global birth rates, which he views as the single biggest threat to human civilization.

The Complete List: Elon Musk's 14 Children in Chronological Order

Musk’s children span two decades, from his firstborn in 2002 to the most recent additions in 2025. The family is shared across four partners, each relationship marking a distinct phase in his personal life. The following list details the 14 children in order of birth, including their mothers and unique names.

The Children with Justine Wilson (6 Children)

Justine Wilson, a Canadian author, was Musk's first wife. They were married from 2000 to 2008 and had six children together. Their family journey began with tragedy and continued with the use of in vitro fertilization (IVF).

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• Nevada Alexander Musk: Born in 2002. Nevada tragically died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. His death is a significant, foundational event in Musk’s family history.
• Twins (Born 2004): Griffin Musk and Vivian Jenna Wilson (formerly Xavier Musk). Vivian legally changed her name in 2022 to distance herself from her father, adopting her mother's maiden name.
• Triplets (Born 2006): Kai Musk, Saxon Musk, and Damian Musk. The triplets were conceived via IVF, making Musk a father of five living sons by the age of 35.

The Children with Claire Boucher, a.k.a. Grimes (3 Children)

Grimes, a Canadian musician known for her experimental style, was in an on-again, off-again relationship with Musk from 2018 to 2021. Their children are famous worldwide for their highly unconventional, alphanumeric names, reflecting the couple's interest in technology, science fiction, and non-traditional naming conventions.

• X Æ A-Xii Musk (X): Born in May 2020. Pronounced "Ex Ash A Twelve," the name is a blend of the letter 'X', the elven spelling of AI (artificial intelligence), and the A-12 reconnaissance aircraft.
• Exa Dark Sideræl Musk (Y): Born via surrogate in December 2021. Her name is a nod to the term "exa" (a supercomputing term), "dark" (the unknown), and "Sideræl" (a more elven spelling of sidereal, relating to the stars).
• Techno Mechanicus Musk (Ta,u): Born in late 2022. The birth of their third child was revealed in the biography Elon Musk by Walter Isaacson. His unique nickname, "Ta,u," is a reference to the Greek letter τ (tau).

The Children with Shivon Zilis (3 Children)

Shivon Zilis is a high-ranking executive at Musk’s company Neuralink. The revelation of their family unit underscored Musk’s belief in having a large family to combat population decline. The children were born in close succession to the children he shares with Grimes.

• Twins (Born 2021): Strider Zilis Musk and Azure Zilis Musk. Their birth was kept quiet until court documents were made public in 2022. They share the same birth year as Exa Dark Sideræl, meaning Musk welcomed three children in 2021 with two different mothers.
• Seldon Lycurgus Musk: Born in early 2025. Zilis announced the birth of their third child in February 2025. The name Seldon is speculated to be a reference to the character Hari Seldon from Isaac Asimov's Foundation series, a science fiction epic that Musk greatly admires.

The Child with Ashley St. Clair (1 Child)

Ashley St. Clair, an author and political commentator, was revealed as the mother of Musk's 13th child in early 2025, adding another layer of surprise to the billionaire's family narrative.

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• Romulus Musk: Born in late 2024 or early 2025. The name Romulus, like Seldon Lycurgus, has a classical, historical resonance, referring to one of the legendary founders of Rome.

The Four Mothers: An Overview of Musk's Partners

The women who share children with Elon Musk come from diverse professional backgrounds, yet all are accomplished in their own right. Their relationships with Musk have often been the subject of intense media scrutiny.

Justine Wilson

Justine Wilson is a Canadian author of speculative fiction and fantasy. She met Musk while they were students at Queen's University in Ontario. Their marriage and subsequent divorce were highly publicized, with Wilson writing candidly about their relationship dynamic and the grief of losing their first child, Nevada. She remains a co-parent to their five surviving children.

Claire Boucher (Grimes)

Grimes is a highly influential figure in the electronic music and art world. Her relationship with Musk was characterized by a shared interest in futuristic and theoretical concepts, which is reflected in their children's unique names. Despite their romantic relationship ending, they continue to co-parent their three children, who often appear in the media due to their unusual monikers.

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Shivon Zilis

Shivon Zilis is a director of special projects at Neuralink, one of Musk’s technology companies. She is a venture capitalist and an expert in artificial intelligence. Her professional and personal connection to Musk highlights a partnership focused on shared intellectual and professional goals, particularly around the future of technology and the human race.

Ashley St. Clair

Ashley St. Clair is a conservative author, political commentator, and social media influencer. Her relationship with Musk and the birth of their son, Romulus, was the most recent to be publicly confirmed, adding a new dimension to the already complex family structure and further fueling public fascination.

Topical Authority: Musk's Philosophy on Birth Rates and Population Collapse

Elon Musk's large family is not a coincidence; it is a deliberate choice driven by a strong, publicly stated philosophical belief. Musk frequently uses his platform on X (formerly Twitter) and in interviews to warn about the dangers of a declining global birth rate, which he terms "population collapse."

He argues that low birth rates, particularly in developed nations, pose a far greater long-term risk to human civilization than issues like global warming. His perspective is that a lack of people will lead to a dearth of innovation, economic stagnation, and ultimately, a civilizational decline. He has stated that people "need to have" at least three children to avoid the collapse of the global economic and social structure.

For Musk, having a large number of children is a direct, personal effort to "practice what he preaches" and set an example for others, especially those he considers "smart people," to contribute to the survival of humanity. This unusual motivation is a key piece of the puzzle, transforming his personal life into a highly visible, globally debated social experiment.