What Are Elon Musk's Kids Names — The Full Story Explained

The Musk Family Overview

Elon Musk, the entrepreneur behind SpaceX and Tesla, has a large family that has grown significantly over the last two decades. As of early 2026, he is known to have 14 children with four different women. His approach to fatherhood often makes headlines due to the unique names chosen for his younger children and his public stance on population growth. Musk has frequently expressed his belief that declining birth rates pose a risk to civilization, which aligns with his personal life choices regarding his expanding family tree.

The names of his children range from traditional Western names to highly unconventional alphanumeric strings and names inspired by classical history or science fiction. This variety reflects the different stages of his life and his relationships with the mothers of his children: Justine Wilson, Grimes, Shivon Zilis, and Ashley St. Clair.

Children with Justine Wilson

Elon Musk’s first marriage was to Canadian author Justine Wilson. Together, they had six children. Their first son, Nevada Alexander Musk, was born in 2002 but tragically passed away from Sudden Infant Death Syndrome (SIDS) at just 10 weeks old. This loss was a private tragedy for the family before Musk's rise to global superstardom.

Following the loss of Nevada, the couple turned to IVF to continue growing their family. In 2004, they welcomed twin sons named Griffin and Vivian. Vivian later made headlines for legally changing her name and transitioning, publicly distancing herself from her father. In 2006, the couple had triplet sons: Kai, Saxon, and Damian. These five children have largely stayed out of the intense media spotlight compared to their younger half-siblings, though they are occasionally mentioned in biographies and news reports regarding Musk’s personal life.

The First Generation Names

The names from Musk's first marriage are relatively conventional. Nevada, Griffin, Vivian, Kai, Saxon, and Damian follow standard naming conventions, though they represent the beginning of Musk's journey into large-scale fatherhood. Most of these children are now young adults or in their late teens as of 2026.

Children with Artist Grimes

Musk’s relationship with the musician Grimes (Claire Boucher) marked a shift toward more experimental naming conventions. Their first child together, a son, was born in May 2020. He was originally named X Æ A-12, though the name was later modified to X Æ A-Xii to comply with California law. He is commonly referred to by the nickname "X."

In December 2021, the pair welcomed a daughter via surrogate named Exa Dark Sideræl Musk, who goes by the nickname "Y." Their third child, a son named Techno Mechanicus (nicknamed "Tau"), was born in June 2022. The existence of Techno Mechanicus was kept private for some time before being revealed to the public. These names reflect the couple's shared interest in technology, space, and science fiction.

Decoding the Unique Names

The name X Æ A-Xii contains several layers of meaning. According to the parents, "X" stands for the unknown variable, "Æ" is the Elven spelling of Ai (love/artificial intelligence), and "A-12" refers to the Archangel-12 aircraft, a precursor to the SR-71. Similarly, Exa Dark Sideræl incorporates terms related to supercomputing (exaFLOPS) and the "true time" of the stars (sidereal).

Children with Shivon Zilis

Shivon Zilis, an executive at Musk’s company Neuralink, is the mother of four of his children. In November 2021, just weeks before the birth of Musk’s second child with Grimes, Zilis gave birth to twins named Strider and Azure. The news of these twins was not made public until July 2022. The timing of these births highlighted the complexity of Musk's personal life and his commitment to having many children.

The family grew again in early 2024 when Zilis and Musk welcomed their third child together, a daughter named Arcadia. Most recently, in early 2025, Zilis announced the birth of their fourth child, a son named Seldon Lycurgus. The name Seldon appears to be a nod to Hari Seldon, the protagonist of Isaac Asimov’s Foundation series, while Lycurgus refers to the legendary lawgiver of Sparta.

Naming Themes and Influences

The names Strider, Azure, Arcadia, and Seldon Lycurgus suggest a blend of nature, classical history, and literary references. Strider is a well-known alias for Aragorn in The Lord of the Rings, while Azure refers to the color of the sky. These names are distinct but slightly more pronounceable than the alphanumeric names given to his children with Grimes.

Child with Ashley St. Clair

In recent months, it was confirmed that Elon Musk has a child with cultural commentator and influencer Ashley St. Clair. Their son, named Romulus, was born in September 2024. The name Romulus is deeply rooted in Roman mythology, referring to one of the twin founders of Rome. This choice continues the trend of using powerful historical or mythological names for the newest members of the Musk family.

The public revelation of Romulus’s birth came alongside reports of legal discussions regarding custody. As of 2026, Musk continues to be active on social media platforms like X, where he occasionally shares updates or opinions regarding his children and his views on the importance of maintaining high birth rates in developed nations.

Summary of All Names

To keep track of the 14 children, it is helpful to view them by their respective mothers. The following table provides a clear breakdown of the names and the order in which they joined the family.

Mother	Child's Name	Birth Year (Approx.)
Justine Wilson	Nevada Alexander (Deceased)	2002
Justine Wilson	Griffin	2004
Justine Wilson	Vivian	2004
Justine Wilson	Kai	2006
Justine Wilson	Saxon	2006
Justine Wilson	Damian	2006
Grimes	X Æ A-Xii (X)	2020
Grimes	Exa Dark Sideræl (Y)	2021
Grimes	Techno Mechanicus (Tau)	2022
Shivon Zilis	Strider	2021
Shivon Zilis	Azure	2021
Shivon Zilis	Arcadia	2024
Shivon Zilis	Seldon Lycurgus	2025
Ashley St. Clair	Romulus	2024

Musk's Views on Family

Elon Musk’s decision to have a large number of children is not merely a personal preference but a stated philosophical goal. He has frequently used his platform to warn about "underpopulation" and "population collapse." In his view, the intelligence and resources of the future depend on the current generation's willingness to have children. This belief system explains why he has continued to expand his family even as his professional responsibilities at Tesla and SpaceX grow.

For those interested in the technological world Musk inhabits, staying updated on his ventures is as common as following his personal life. For instance, users looking to engage with the digital economy can find options for spot trading on platforms like WEEX to manage their assets. Musk's influence often crosses the line between personal lifestyle and global market trends, making his family news a topic of interest for investors and tech enthusiasts alike.

Public and Legal Dynamics

With such a large and complex family, public interest and legal matters are inevitable. Musk has been involved in various custody arrangements and public disagreements regarding the upbringing and identities of his children. His relationship with his daughter Vivian has been particularly strained, with both parties making public statements about their ideological differences. Furthermore, his recent legal filings regarding Romulus indicate that even as his family grows, the complexities of managing these relationships remain a significant part of his life.

Despite the drama often reported in the media, Musk is frequently seen with his son X at public events, including rocket launches and political gatherings. This suggests that while some relationships are private or strained, he remains actively involved in the lives of his younger children, often integrating them into his professional world. As of March 2026, the Musk family remains one of the most talked-about and unconventional families in the public eye.