The 14 Most Bizarre And Brilliant Names Of Elon Musk’s Children: An Updated 2025 List
The family tree of billionaire entrepreneur Elon Musk is one of the most talked-about topics in the world, not just for its size, but for the astonishingly unique names of his children. As of December 21, 2025, the Tesla and SpaceX CEO is the father of 14 children with four different partners, a number that has grown significantly with recent revelations in early 2025, continuing his stated mission to help combat underpopulation. The names he and his partners have chosen—a blend of ancient history, mathematics, science fiction, and pure enigma—are a masterclass in curiosity-driven branding, making each announcement a global headline.
This comprehensive, up-to-date guide delves into the full roster of the Musk children, exploring the inspiration, meaning, and public context behind the most brilliant and bizarre names in the modern celebrity sphere, including the newest additions like Romulus and Seldon Lycurgus.
Elon Musk: A Brief Biography and Fatherhood Timeline
Elon Reeve Musk was born on June 28, 1971, in Pretoria, South Africa. He is the CEO of SpaceX, CEO of Tesla, and owner of X (formerly Twitter). Musk's personal life is as public and complex as his business ventures, particularly his extensive family. He has consistently spoken about the importance of having children to maintain human civilization.
His journey into fatherhood began in the early 2000s and has continued to evolve, with the newest children being born in late 2024 and early 2025, bringing the total number of his publicly known children to 14.
- Full Name: Elon Reeve Musk
- Born: June 28, 1971 (Age 54 as of late 2025)
- Birthplace: Pretoria, South Africa
- Parents: Errol Musk and Maye Musk
- Siblings: Kimbal Musk and Tosca Musk
- Education: University of Pennsylvania (B.A. in Physics and B.S. in Economics)
- Known Partners (in relation to children): Justine Wilson, Claire Elise Boucher (Grimes), Shivon Zilis, and Ashley St Clair.
- Total Children: 14 (as of 2025)
The First Chapter: The Children with Justine Wilson
Musk’s first wife, Canadian author Justine Wilson, is the mother of his first six children, all conceived through in vitro fertilization (IVF). This initial chapter of his family life established a pattern of non-traditional naming, albeit less extreme than later choices.
1. Nevada Alexander Musk (Born 2002 – Died 2002)
Nevada Alexander Musk was Musk’s first child, born in 2002. Tragically, he died of Sudden Infant Death Syndrome (SIDS) at just 10 weeks old.
2 & 3. Griffin Musk and Vivian Jenna Wilson (Born 2004)
Two years after the loss of Nevada, Musk and Wilson welcomed twin sons, Griffin and Xavier, via IVF in 2004.
- Vivian Jenna Wilson: Formerly named Xavier Alexander Musk, she publicly filed to legally change her name and gender identity in 2022 to Vivian Jenna Wilson, stating she no longer wished to be related to her biological father.
- Griffin Musk: The other twin, Griffin, has largely remained out of the public eye.
4, 5, & 6. Kai Musk, Saxon Musk, and Damian Musk (Born 2006)
In 2006, the couple welcomed triplets, Kai, Saxon, and Damian, also conceived through IVF. These names, while more conventional than some of Musk's later choices, still carry a distinctive, somewhat historical or literary flair, with Kai being a popular Hawaiian name meaning "sea."
The Grimes Era: The Most Enigmatic Naming Conventions
Musk’s relationship with musician Claire Elise Boucher, known professionally as Grimes, yielded three children with names that instantly became cultural phenomena, blending technology, mathematics, and esoteric language.
7. X Æ A-Xii Musk (Born 2020)
Originally announced as X Æ A-12, the name had to be legally changed in California because the law prohibits using numbers in a name. The name was adjusted to X Æ A-Xii (pronounced "Ex Ash A Twelve"), with the Roman numerals for 12.
- Meaning: 'X' stands for the unknown variable. 'Æ' is the elven spelling of AI (artificial intelligence) or 'love'. 'A-Xii' is a nod to the Lockheed SR-71 Blackbird's precursor, the A-12, which Grimes described as her favorite aircraft.
- Nickname: "X."
8. Exa Dark Sideræl Musk (Born 2021)
Born via surrogate in December 2021, their second child is a daughter named Exa Dark Sideræl, who is affectionately nicknamed "Y."
- Meaning: 'Exa' is a reference to ExaFLOPS, a unit of computing power. 'Dark' refers to the unknown, or dark matter. 'Sideræl' is an elven spelling of sidereal, meaning "of the stars," and is often linked to the true time of the universe.
- Nickname: "Y."
9. Techno Mechanicus Musk (Born 2022)
The existence of a third child with Grimes, a son named Techno Mechanicus, was revealed in Walter Isaacson’s 2023 biography of Musk.
- Meaning: The name is perhaps the most overtly technical of the three. 'Techno' relates to technology and 'Mechanicus' evokes a sense of engineering and machinery.
- Nickname: "Tau," which is a mathematical term associated with 2π, a number Musk prefers over pi (π).
The Neuralink Family: Ancient History and Science Fiction
Musk shares four children with Neuralink executive Shivon Zilis. The existence of the first two was revealed in 2022, and the third and fourth were confirmed in early 2025, solidifying a pattern of names inspired by mythology and science fiction.
10 & 11. Strider Musk and Azure Musk (Born 2021)
Zilis gave birth to boy-girl twins in November 2021, just weeks before Exa Dark Sideræl was born. Their names were revealed in court documents related to a petition to change their names to include Musk’s surname.
- Strider Musk: The name Strider is a nod to the character Aragorn, who is known by the name Strider in J.R.R. Tolkien's *The Lord of the Rings*.
- Azure Musk: The name Azure is a deep, celestial blue, suggesting a connection to the sky or space, a common theme in Musk’s life.
12. Arcadia Musk (Born 2022/2023)
Arcadia is the third child shared by Musk and Zilis, a daughter whose name was revealed in early 2025 alongside the announcement of the fourth child.
- Meaning: Arcadia is a region in Greece famous in classical literature as a place of pastoral peace and idyllic simplicity, a possible counterpoint to the complexity of the other names.
13. Seldon Lycurgus Musk (Born Late 2024/Early 2025)
The 14th child of Elon Musk, a son, was announced in February 2025.
- Seldon: This name is a direct reference to Hari Seldon, a pivotal character from Isaac Asimov’s seminal *Foundation* science fiction series, known for developing 'psychohistory.'
- Lycurgus: The middle name is inspired by the legendary Spartan lawgiver Lycurgus, a figure from ancient Greek history. The Greek root means "wolf" and "work" or "deed."
The Latest Addition: A Nod to Roman Mythology
A 13th child, born to conservative author Ashley St Clair, was also revealed in early 2025, further expanding the Musk family.
14. Romulus Musk (Born September 2024)
The son of Ashley St Clair and Elon Musk, Romulus’s name was confirmed in April 2025, just weeks after the announcement of Seldon Lycurgus.
- Meaning: Romulus is one of the twin brothers from Roman mythology, the other being Remus, who are credited with founding the city of Rome. This choice continues the theme of classical and historical names in the Musk lineage.
The Topical Authority: Why the Names Matter
The fascination with the Musk children names goes beyond mere celebrity gossip; it reflects a deeper cultural conversation about technology, futurism, and the very nature of human identity. The names are not just eccentric; they are deliberate philosophical statements.
Names like X Æ A-Xii, Exa Dark Sideræl, and Techno Mechanicus serve as topical authority markers, linking Musk's family directly to his professional interests in space exploration, artificial intelligence, and advanced technology. The classical names, such as Romulus and Seldon Lycurgus, ground this futurism in a deep appreciation for history and foundational thought, particularly in science fiction and law. The choice of Vivian Jenna Wilson by his eldest daughter, however, stands as a powerful counter-narrative, asserting an independent identity separate from her father's public persona. The sheer volume and uniqueness of the names ensure that the "Musk kids names" will remain a dominant search entity for years to come.
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