Over the span of two decades, Elon Musk has become a father to 14 children with multiple women. His journey as a parent began in 2002 with the birth of his first son, Nevada Alexander, with his then-wife, Canadian author Justine Wilson. Tragically, Nevada passed away from sudden infant death syndrome (SIDS) at just 10 weeks old.
Following this loss, Musk and Wilson had five more children through IVF: twins Vivian and Griffin and triplets Kai, Saxon, and Damian. They divorced in 2008 after seven years of marriage.
Musk then married and divorced actress Talulah Riley twice, though they didn’t have children together. In 2020, Musk and singer Grimes welcomed their first child, X Æ A-12, followed by a daughter, Exa Dark Sideræl, via surrogate in 2021, and later a son named Techno Mechanicus (nicknamed Tau).
In a surprising twist, it was revealed through court documents that Elon Musk also secretly fathered twins—Strider and Azure—with Neuralink executive Shivon Zilis in late 2021. In February 2024, they had a third child together named Arcadia. A year later, Zilis announced they had welcomed a fourth child, a son named Seldon Lycurgus, though the birthdate remains undisclosed.
In February 2025, conservative author Ashley St. Clair disclosed that she had a child with Musk, later confirmed to be a boy named Romulus. Around the same time, it was reported Musk may have fathered a child with a Japanese pop star, though this has yet to be confirmed.
Here’s a breakdown of Musk’s known children:
A Complete List of Elon Musk’s Children:
- Nevada Alexander
- Vivian Jenna Wilson
- Griffin Musk
- Kai Musk
- Saxon Musk
- Damian Musk
- X Æ A-Xii
- Exa Dark Sideræl
- Techno Mechanicus (Tau)
- Strider
- Azure
- Arcadia
- Seldon Lycurgus
- Romulus
Individual Profiles of Musk’s Children
Nevada Alexander Musk
Nevada, Musk’s first child with Justine Wilson, was born in 2002 but tragically died of SIDS at only 10 weeks old. In a heartfelt essay, Wilson recounted the devastating experience of holding Nevada in her arms as he passed after being taken off life support.
Vivian Jenna Wilson and Griffin Musk
After Nevada’s death, Wilson and Musk pursued IVF, resulting in twins Vivian and Griffin. In 2022, Vivian petitioned to change her name and gender identity, choosing her mother’s maiden name and cutting ties with Musk. She later explained publicly that she no longer wants any relationship with her father, citing emotional neglect and criticism of her gender identity.
In contrast, Griffin remains largely out of the spotlight but was seen attending a public event with Musk in May 2024.
Kai, Saxon, and Damian Musk
The triplets, born in 2006, were also conceived via IVF. Though mostly private, Damian is described in Walter Isaacson’s Musk biography as an exceptionally bright student with talents in music and science, even earning praise from his grandmother Maye Musk.
X Æ A-Xii (“X”)
Born to Grimes and Musk in 2020, X has become a public figure from an early age. His complex name is derived from aerospace and tech references. Despite a turbulent family setup, X has accompanied Musk to events, including business conferences and even to the White House in 2025. Musk once credited his black eye to playful roughhousing with his son.
Exa Dark Sideræl (“Y”)
Born via surrogate in December 2021, Exa, or “Y,” also carries a deeply symbolic name chosen by Grimes. “Exa” references supercomputing, while “Dark” symbolizes the unknown, and “Sideræl” refers to deep cosmic time. Grimes noted that Y is highly curious and unusually fascinated with engineering and logistics.
Techno Mechanicus (“Tau”)
Musk and Grimes’ third child was kept secret until Walter Isaacson’s biography revealed him in 2023. Described as introspective and soulful, Techno goes by the nickname Tau. Grimes has chosen to keep further details private to protect his upbringing.
Strider and Azure
These twins were born to Musk and Shivon Zilis in November 2021. Court documents revealed their names and birth details in 2022, and their full identities were publicly shared in 2023. The couple gave them Musk’s surname while incorporating Zilis’s name into their middle names.
Arcadia Musk
In February 2024, Zilis gave birth to her and Musk’s third child, a daughter named Arcadia. She celebrated Arcadia’s first birthday in early 2025 with a loving public message, expressing how deeply she cherishes her daughter.
Seldon Lycurgus Musk
Zilis later announced in February 2025 that she and Musk had welcomed a fourth child together. The son, named Seldon Lycurgus, is described by Zilis as “built like a juggernaut with a heart of gold.”
Romulus Musk
St. Clair and Musk’s child, Romulus, was born in September 2024. St. Clair initially kept the birth private but later confirmed it publicly in early 2025. Musk disputed the child’s paternity at first but later financial and paternity documents confirmed that he is indeed the father. Tensions between Musk and St. Clair became public in mid-2025, particularly around financial support and parental rights.
Family Dynamics and Public Reactions
Musk’s extended family continues to draw significant public attention. Grimes has defended her children’s privacy and openly supported Vivian’s statements about Musk. Meanwhile, Musk has addressed the strained relationship with Vivian by blaming ideological influences but has maintained he gets along well with his other children.
In interviews, Vivian has consistently challenged Musk’s narrative, accusing him of being largely absent and misrepresenting their family relationship. She also claims she found out about some of her half-siblings through the news—highlighting the complexity of Musk’s modern family.
Conclusion
Elon Musk’s legacy is not only defined by his technological innovations but also by his uniquely large and diverse family. From tragedy to controversy, and from secrecy to public spectacle, the stories of his 14 children reflect the many complicated layers of the world’s most talked-about billionaire father.
