The Definitive List: How Many Kids Does Elon Musk Have Now? (The Shocking 14-Child Count And Their Mothers)

As of December 2025, the total number of children born to billionaire entrepreneur Elon Musk stands at a staggering 14, a figure that has cemented his status as a vocal proponent of population growth. This number has been a subject of intense public fascination, constantly changing with new, often secretive, births being revealed. The most recent additions in 2024 have brought the total count to a level few celebrities or business magnates can match, making a definitive, chronological list essential for anyone trying to keep up with the ever-expanding Musk family. The current count of 14 children, shared with four different partners, is a testament to the Tesla and SpaceX CEO's personal mission to address what he perceives as a global underpopulation crisis. The complexity of the family tree, featuring unique names like X Æ A-Xii and Exa Dark Sideræl, along with the recent, surprising revelations about new mothers and babies in 2024, ensures the topic remains one of the most talked-about aspects of the tech titan's private life.

The Complete Biography of Elon Musk's 14 Children (Chronological Order)

The Musk family tree is complex, spanning over two decades and involving four different mothers. The most recent additions in 2024 have dramatically changed the public's understanding of the total number of children, which now stands at 14 born, with 13 currently living. Below is the definitive, chronological list of all of Elon Musk’s children, their mothers, and their birth years.

• Nevada Alexander Musk (with Justine Musk)
  • Born: 2002
  • Status: Tragically passed away at 10 weeks old due to Sudden Infant Death Syndrome (SIDS).
• Griffin Musk (with Justine Musk)
  • Born: 2004 (Twin)
  • Notable: The older of the first set of twins, born via IVF.
• Vivian Jenna Wilson (formerly Musk) (with Justine Musk)
  • Born: 2004 (Twin)
  • Notable: Legally changed her name and gender identity in 2022 to officially sever ties with her father.
• Kai Musk (with Justine Musk)
  • Born: 2006 (Triplet)
  • Notable: One of a set of triplets, also conceived via IVF.
• Saxon Musk (with Justine Musk)
  • Born: 2006 (Triplet)
  • Notable: Part of the second set of children with Justine Wilson.
• Damian Musk (with Justine Musk)
  • Born: 2006 (Triplet)
  • Notable: The third of the triplets, born two years after the twins.
• X Æ A-Xii (known as 'X') (with Grimes, née Claire Boucher)
  • Born: May 2020
  • Notable: Famous for his original, non-traditional name, which was later slightly modified to comply with Californian law.
• Strider Zilis Musk (with Shivon Zilis)
  • Born: November 2021 (Twin)
  • Notable: Born secretly, the twins' existence was revealed in July 2022. Shivon Zilis is a Neuralink executive.
• Azure Zilis Musk (with Shivon Zilis)
  • Born: November 2021 (Twin)
  • Notable: Born just weeks before the arrival of Musk’s second child with Grimes.
• Exa Dark Sideræl Musk (known as 'Y') (with Grimes)
  • Born: December 2021 (via surrogate)
  • Notable: Her birth was kept secret for months, only revealed when she cried during an interview with Grimes.
• Techno Mechanicus (known as 'Tau') (with Grimes)
  • Born: 2023
  • Notable: His birth was revealed in a biography of Elon Musk. 'Tau' is a Greek letter often used in mathematics and physics.
• Arcadia (with Shivon Zilis)
  • Born: February 28, 2024
  • Notable: The third child with Zilis, confirmed by Musk in mid-2024, adding another to the Neuralink family branch.
• Romulus (with Ashley St. Clair)
  • Born: September 2024
  • Notable: The 14th child, whose paternity was revealed in early 2025. His mother is conservative influencer Ashley St. Clair.

The Four Mothers Who Share Elon Musk's Children

The narrative of Elon Musk’s growing family is inextricably linked to the four women who are the mothers of his children. Each relationship has brought a new chapter to the billionaire's personal life, often with a high degree of media scrutiny and public curiosity.

Justine Musk (Justine Wilson) – The First Wife

Justine Wilson, a Canadian author, was Elon Musk’s first wife. They met while attending Queen's University in Ontario. Their relationship, detailed in Justine’s own writings, was the foundation of Musk's journey into fatherhood. The couple welcomed their first son, Nevada Alexander, in 2002, but he tragically passed away from SIDS. Following this devastating loss, they turned to in-vitro fertilization (IVF) to expand their family. This resulted in the birth of twins, Griffin and Vivian Jenna, in 2004, and triplets, Kai, Saxon, and Damian, in 2006. In total, Justine is the mother of six of Musk’s children, five of whom are living. The children's upbringing has been kept relatively private, though Vivian Jenna’s public decision to change her name and gender in 2022 brought the family back into the spotlight.

Grimes (Claire Boucher) – The Artist and Muse

Grimes, the avant-garde musician, brought a new level of public interest and unique naming conventions to the Musk family. Their relationship, which began in 2018, was characterized by its unconventional nature. Grimes is the mother of three of Musk’s children. Their first child, X Æ A-Xii (X), born in May 2020, instantly became a global sensation due to his name. Their second child, Exa Dark Sideræl (Y), was born via surrogate in December 2021, a birth that was kept secret until a reporter overheard her crying. The third child, Techno Mechanicus (Tau), was also revealed later, highlighting the couple’s preference for privacy and their shared interest in technology and esoteric concepts. The relationship, though on-again, off-again, has produced some of the most uniquely named children in the world.

Shivon Zilis – The Neuralink Executive

The revelation of children with Shivon Zilis, a high-ranking executive at Musk's neurotechnology company, Neuralink, was perhaps the most surprising to the public. Zilis and Musk welcomed twins, Strider and Azure, in November 2021. Court documents confirming their existence were filed as part of a petition to change the children's surnames to include both parents' last names. In a further development in 2024, it was confirmed that Zilis had given birth to a third child, a daughter named Arcadia. This brings the total number of children shared between Musk and Zilis to three. The close timing of the twins' birth with the arrival of Exa Dark Sideræl (Y) with Grimes sparked significant discussion about the complex structure of Musk's personal life and his commitment to reversing the birth-rate decline.

The Latest Addition: Romulus and the 14-Child Milestone

The most recent and perhaps most unexpected addition to the Musk family, which pushed the count to 14, was the birth of a son named Romulus in September 2024. The mother is conservative influencer Ashley St. Clair. The news of the 14th child, whose paternity was confirmed in early 2025, underscores a pattern of Musk welcoming children in quick succession and often with a degree of secrecy. Romulus’s name, like many of his siblings, carries a historical or mythological weight, referencing the legendary founder of Rome. The birth of Romulus, alongside the arrival of Arcadia earlier in the year, makes 2024 one of the most prolific years for the Musk family, solidifying the narrative that the billionaire is actively practicing what he preaches regarding population expansion. The ongoing curiosity surrounding the Musk children is fueled not only by the sheer number but also by the diverse and high-profile nature of the mothers. From the foundational family with Justine Musk to the tech-focused branch with Shivon Zilis and the artistic, unique names with Grimes, the Musk family saga is a fascinating intersection of technology, celebrity, and a very public commitment to a private family mission. The world continues to watch as Elon Musk, the self-proclaimed "Musk-eteer," champions a future with more humans, one child at a time.