Elon Musk has built a massive family alongside his sprawling business empire. Between multiple partners, the billionaire tech entrepreneur has fathered 14 children, ranging from adults to toddlers. If you're trying to keep track of every kid, their mothers, and their distinctive names, you aren't alone. The family tree spans multiple relationships and includes some of the most unconventional monikers in modern pop culture history.
Here is the complete, chronological breakdown of Elon Musk's children, starting from his firstborn to his youngest additions.
The Children with Justine Wilson
Musk married Canadian author Justine Wilson in 2000. Together, they welcomed six children, beginning with a tragic loss before moving on to twins and triplets via IVF.
Nevada Alexander Musk
Born in 2002, Nevada was Musk's first child with Justine Wilson. Tragically, Nevada passed away from sudden infant death syndrome (SIDS) when he was just 10 weeks old.
Griffin and Vivian Jenna Wilson
Following Nevada's passing, the couple turned to IVF and welcomed twin sons in April 2004.
- Griffin Musk: Griffin has largely stayed out of the public eye.
- Vivian Jenna Wilson: Originally born Xavier Alexander Musk, Vivian legally changed her name and gender in 2002, dropping her father's surname and adopting her mother's maiden name alongside a public estrangement from Elon Musk.
Kai, Saxon, and Damian Musk
Continuing with IVF, Justine and Elon welcomed triplet sons—Kai, Saxon, and Damian—in January 2006. The triplets have grown up mostly away from media scrutiny, though Musk has occasionally mentioned them in interviews regarding his parenting approach. Elon and Justine divorced in 2008.
The Children with Grimes
Musk began an on-and-off relationship with Canadian musician Claire Boucher, known professionally as Grimes, in 2018. They share three children with uniquely futuristic names.
X Æ A-Xii ("X")
Born on May 4, 2020, their first child together caused a massive media sensation due to his original birth certificate name, X Æ A-12. Because California law prohibits numbers and certain characters on birth certificates, they modified it to use Roman numerals, changing it to X Æ A-Xii. He is commonly called "X".
Exa Dark Sideræl Musk ("Y")
Born via surrogate in December 2021, Exa Dark Sideræl is Musk's second child with Grimes. She goes by the nickname "Y". Her first name references the computing term exaFLOPS, while Sideræl points to deep space.
Techno Mechanicus ("Tau")
Arriving quietly and revealed later, Techno Mechanicus is Grimes and Musk's third child together. He goes by the nickname "Tau".
The Children with Shivon Zilis
Shivon Zilis, an executive at Neuralink, shares multiple children with Musk. Their growing family expanded across several years.
Strider and Azure Musk
In November 2021, Zilis gave birth to twins, Strider and Azure. Court documents later established that the twins carry both Musk and Zilis in their last names.
Arcadia
Born in February 2024, Arcadia is a daughter shared by Musk and Zilis. Her existence became public knowledge months after her birth.
Seldon Lycurgus
Expanding their family further, Zilis and Musk welcomed a son named Seldon Lycurgus, adding another sibling to the Neuralink executive's household unit.
Additional Family Additions
Romulus
In late 2024, author and commentator Ashley St. Clair welcomed a son named Romulus, with subsequent reports confirming Musk as the father.
How Elon Musk Manages a Massive Family
Raising a large family across different households requires deliberate logistics. According to reports and biographical details shared over the years, Musk's children are often grouped into distinct household units—such as the older boys with Justine, the children with Grimes, and the children with Shivon Zilis. Each unit operates with its own dedicated support system and schedules.
Despite his demanding schedule running companies like Tesla, SpaceX, and X (formerly Twitter), Musk has frequently spoken about attempting to stay involved in his children's daily lives and coordinating travel around them.
Frequently Asked Questions
How many children does Elon Musk have in total?
Elon Musk has 14 known children born between 2002 and 2025, shared with multiple partners including Justine Wilson, Grimes, Shivon Zilis, and Ashley St. Clair.
Who are the mothers of Elon Musk's children?
The mothers of his children are author Justine Wilson, musician Grimes, Neuralink executive Shivon Zilis, and author Ashley St. Clair.
Why do some of Elon Musk's children have unusual names?
Musk and his partners, particularly Grimes, have opted for futuristic, technological, or mythological names—such as X Æ A-Xii, Exa Dark Sideræl, and Techno Mechanicus—to reflect specific personal interests, space concepts, and computing terminology.
Are all of Elon Musk's children in the public eye?
No. While names like X generate heavy media coverage, many of his children—including the triplets with Justine Wilson and the younger children with Shivon Zilis—are kept strictly out of the public spotlight to preserve their privacy. You can read more about celebrity families and tech industry profiles on Forbes or Reuters.
