Elon Musk's expanding family has long captured public fascination, particularly given his unconventional approach to naming his children and his vocal views on global demographics. With multiple partners over the years, the Tesla and SpaceX founder has fathered fourteen children, though the family dynamic includes profound personal tragedies, public estrangements, and unique legal arrangements. Understanding who they are requires looking past the viral headlines to examine each branch of his family tree.
The scale of Musk's family often catches observers off guard. Across four different mothers, his children range from adults in their twenties to toddlers born in recent years. To make sense of the complete roster, it helps to break down the children chronologically by their mothers, examining how each generation fits into the billionaire's life.
Children with Justine Wilson
Musk's first marriage was to Canadian author Justine Wilson, whom he married in 2000. Their journey into parenthood began with deep sorrow before growing into a large family of five surviving children.
- Nevada Alexander Musk (2002): Musk's firstborn son with Wilson tragically passed away from Sudden Infant Death Syndrome (SIDS) at just ten weeks old. The loss heavily influenced Musk's private and public processing of grief.
- Griffin and Vivian Jenna Wilson (2004): Following Nevada's passing, the couple turned to in vitro fertilization (IVF) to welcome twin boys. One of the twins, originally named Xavier, legally changed her name to Vivian Jenna Wilson in 2022, dropping Musk's surname and publicly severing ties with her father.
- Kai, Saxon, and Damian Musk (2006): Continuing with IVF, Wilson and Musk welcomed triplet boys two years after the twins. Following Musk and Wilson's divorce in 2008, the triplets have largely remained out of the public spotlight while being co-parented.
Children with Grimes
Musk's high-profile relationship with Canadian musician Claire Boucher, known professionally as Grimes, yielded three children whose futuristic names frequently dominated tech and entertainment news cycles.
- X Æ A-Xii Musk (2020): Affectionately known as "X", his birth name initially sparked regulatory hurdles in California regarding acceptable characters on birth certificates, leading to a slight adjustment of the numbers in his name.
- Exa Dark Sideræl Musk (2021): Born via surrogate and nicknamed "Y", her first name references the computing term exaFLOPS, while her middle name honors deep space.
- Techno Mechanicus (2022): Given the family nickname "Tau", his existence was publicly confirmed during the rollout of Walter Isaacson’s biography of Musk.
Children with Shivon Zilis
Shivon Zilis, an executive at Neuralink, shares multiple children with Musk, built around a unique co-parenting arrangement that became public through legal filings regarding surname adjustments.
- Strider and Azure Zilis Musk (2021): Born as twins just weeks before Grimes welcomed her second child, their names incorporate both parents' surnames.
- Arcadia Musk (2024): Born in early 2024, her arrival was kept relatively private before details emerged through media reports.
- Seldon Lycurgus Musk (2025): Zilis announced the birth of Seldon Lycurgus, adding another child to the expanding family registry.
Child with Ashley St. Clair
- Romulus Musk (2024): In early 2025, conservative writer and influencer Ashley St. Clair publicly announced the birth of her son, Romulus, sharing that Musk is the father.
Frequently Asked Questions
How many total children does Elon Musk have?
Elon Musk has fourteen publicly known children, factoring in his firstborn son who passed away in infancy.
Who are the mothers of Elon Musk's children?
The four women who share children with Musk 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 have frequently opted for avant-garde, tech-inspired, or mythological names—such as X Æ A-Xii or Techno Mechanicus—reflecting interests in aerospace engineering, computing concepts, and sci-fi literature.
Do all of Elon Musk's children maintain a relationship with him?
Most of his children maintain private lives out of the media spotlight, though public records show that some, such as Vivian Jenna Wilson, have legally changed their names and distanced themselves from him.
