Elon Musk’s 14 Children: Names, Ages, Mothers, and More

Who Are Elon Musk’s Kids?

Elon Musk—the visionary entrepreneur behind Tesla, SpaceX, Neuralink, and X (formerly Twitter)—is not just known for his technological innovation but also for his rapidly expanding family. As of 2025, Musk has fathered 14 known children with four different women, a fact that has often placed his private life in the spotlight as much as his business ventures. The journey of Musk’s family is marked by unique names, personal tragedies, complex relationships, and an intriguing blend of privacy and publicity.

This article unpacks the story of each of Musk’s children, chronicling their births, backgrounds, and the mothers who shaped their early lives.

Nevada Alexander Musk

Born: 2002
Mother: Justine Wilson
Status: Deceased (passed away at 10 weeks old)

Elon Musk’s first child, Nevada Alexander Musk, was born in 2002 to Musk and his first wife, Canadian author Justine Wilson. Tragically, Nevada died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old, a loss that deeply affected both parents. In her Marie Claire essay, Justine recounted holding Nevada in her arms as he passed away, describing the harrowing experience and its emotional aftermath.

Musk rarely speaks publicly about Nevada’s death, but in private communications, he has conveyed empathetic sorrow to others who have suffered similar losses.

Griffin Musk and Vivian Jenna Wilson (Formerly Xavier Musk)

Born: April 2004
Mother: Justine Wilson
Status: Alive

After the loss of Nevada, Elon and Justine turned to IVF and welcomed twins—Griffin and Xavier Musk—in April 2004. In 2022, Xavier changed her name to Vivian Jenna Wilson after coming out as transgender and legally distancing herself from Elon Musk, choosing to take her mother’s surname and stating her desire to sever ties with her father.

• Griffin Musk: Known to be private. As of 2025, he is 21 years old.
• Vivian Jenna Wilson: Advocated for her own identity and privacy, making headlines for taking her mother’s name and transitioning.

The story of Griffin and Vivian is one of healing and new beginnings after tragedy, marked by both innovation and personal evolution within a high-profile family.

Kai, Saxon, and Damian Musk (The Triplets)

Born: January 2006
Mother: Justine Wilson
Status: Alive

Continuing with IVF, Musk and Wilson had triplets—Kai, Saxon, and Damian Musk—born in January 2006. The triplets are now 19. Their personal lives remain more discreet compared to some of their siblings, though:

• Damian Musk is described as a prodigy in music and excels at math and physics.
• Kai Musk and Damian accompanied Elon during international meetings, including with Indian Prime Minister Narendra Modi.
• Saxon Musk has been referenced by Elon in interviews and online posts.

Justine and Elon divorced in 2008, and the triplets have mostly maintained privacy despite periodic media attention.

X Æ A-Xii Musk (“X”)

Born: May 4, 2020
Mother: Claire Boucher aka Grimes
Status: Alive

X Æ A-Xii Musk—also called “X”—became world-famous as soon as his name was revealed for its unconventional, technology-inspired blend of symbols and letters. His mother, Canadian musician Grimes, explained the meaning behind the name as a combination of mathematical references and personal ideations. X’s birth marked Musk’s relationship with multidisciplinary creativity and a fascination with the future.

• Name Meaning: ‘X’ stands for the unknown, ‘Æ’ represents “Artificial Intelligence,” and ‘A-12’ refers to the Archangel 12 aircraft.

Exa Dark Sideræl Musk (“Y”)

Born: December 2021
Mother: Claire Boucher aka Grimes
Status: Alive

The couple’s daughter Exa Dark Sideræl Musk, nicknamed “Y,” arrived via surrogate in December 2021. Her name references “Exa,” signifying a supercomputing term, “Dark” for the unknown, and “Sideræl” is pronounced ‘sigh-deer-ee-el,’ which Grimes says is a more ‘elven’ spelling of ‘sidereal,’ relating to star time rather than earth time.

Strider and Azure Musk (Twins)

Born: November 2021
Mother: Shivon Zilis
Status: Alive

Strider Musk and Azure Musk are twins born to Shivon Zilis—an executive at Neuralink and longtime Musk collaborator—in November 2021. Their birth became public only months later when court documents surfaced, revealing Musk’s ongoing preference for expanding his family, often with little advance public notice.

Techno Mechanicus (“Tau”)

Born: 2023
Mother: Shivon Zilis
Status: Alive

The name Techno Mechanicus, often shortened to “Tau,” reflects Musk’s interest in technology, mathematics, and science fiction. Tau’s birth underscores Musk’s commitment to unique, forward-looking names that evoke futuristic or mythological symbolism, perhaps reflecting his belief in human expansion and progress.

Arcadia Musk

Born: February 28, 2024
Mother: Shivon Zilis
Status: Alive

Arcadia Musk was born in early 2024. The name evokes images of a utopian future, aligning with Musk’s penchant for naming children after concepts or mythological references.

Romulus Musk

Born: September 2024
Mother: Ashley St. Clair
Status: Alive

Romulus Musk is another recent addition, born to Musk and Ashley St. Clair. The name ‘Romulus’ references the founder of Rome, again demonstrating Musk’s fascination with history, myth, and world-building narratives.

Seldon Lycurgus Musk

Born: February 28, 2025
Mother: Shivon Zilis
Status: Alive

Seldon Lycurgus Musk is Musk’s youngest known child as of 2025. The name combines ‘Seldon,’ likely a nod to the psychohistorian Hari Seldon from Isaac Asimov’s Foundation series, and ‘Lycurgus,’ an ancient Spartan lawgiver, reflecting Musk’s consistent interest in technology and history.

Overview Table: Elon Musk’s Children

Elon Musk’s Relationship Philosophy

• Pro-Natalist Beliefs: Musk has publicly voiced concerns about declining birth rates and has advocated for large families, which directly informs his personal choices.
• Privacy vs. Publicity: While Musk’s older children, especially those with Justine Wilson, have occasionally been in the media, he has kept details about his youngest children intensely private, rarely sharing photos or personal stories beyond their birth announcements.
• Naming Trends: Many of Musk’s children have names reflecting technological, scientific, mythological, and historical interests, a pattern indicative of Musk’s distinctive worldview.

Frequently Asked Questions (FAQs)

How many children does Elon Musk have?

Elon Musk currently has 14 known children born between 2002 and 2025, through relationships with four women.

Why are Musk’s children’s names so unique?

Musk is fascinated by technology, science fiction, mythology, and history. The names often reference those interests, aiming to inspire a sense of the future and human potential.

Who are the mothers of Elon Musk’s children?

His children’s mothers are author Justine Wilson, musician Grimes (Claire Boucher), Neuralink executive Shivon Zilis, and social influencer Ashley St. Clair.

What happened to Nevada Alexander Musk?

Nevada Alexander Musk, Elon’s first child, died from SIDS at 10 weeks old, a loss both parents have described as deeply traumatic.

Which children are the most in the public eye?

Vivian Jenna Wilson (formerly Xavier) garnered attention for her legal name change and public separation from Musk. X Æ A-Xii (“X”) and Exa Dark Sideræl (“Y”) are known for their remarkable names.

Key Takeaways

• Elon Musk has 14 children (as of 2025), a blend of privacy and public fascination.
• Unique naming conventions reflect Musk’s views on technology, philosophy, and futurism.
• Children’s mothers span four partners, each with a distinct relationship dynamic.
• Tragedy, change, and innovation have all marked the evolution of Musk’s family tree.
• Family legacy remains an ongoing narrative, with younger children mostly shielded from the public eye.

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Medha DebCommerce Editor

 

Medha Deb is a commerce editor with a master's degree in applied linguistics from the University of Hyderabad, which has allowed her to develop a deep understanding of language and its application in various contexts. She specializes in the areas of beauty, health, and wellness and is committed to ensuring that the content on the website is of the highest quality.

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