Elon Musk is known worldwide for companies such as Tesla and SpaceX, but his family life has also attracted considerable public attention. As of 2026, Elon Musk has 14 publicly known children with four different women. Thirteen are living, while his first child, Nevada Alexander, died in infancy.
The Elon Musk children include twins, triplets, and children with some of the most unusual names in celebrity culture. His children were born between 2002 and 2025, making the family span more than two decades. Some children have appeared publicly with Musk, while others have largely remained away from the spotlight.
Because family details have developed over time, the most accurate description is 14 publicly known children, rather than assuming that no other children could exist. This guide covers their names, birth years, mothers, family timeline, and the information that has been publicly documented.
How Many Children Does Elon Musk Have?
As of 2026, Elon Musk has 14 publicly known children with four women: Justine Wilson, Grimes, Shivon Zilis, and Ashley St. Clair. The total includes Nevada Alexander, who died at 10 weeks old in 2002.
Here is the family breakdown:
| Mother | Children | Total |
| Justine Wilson | Nevada, Griffin, Vivian, Kai, Saxon, Damian | 6 |
| Grimes | X Æ A-Xii, Exa, Techno Mechanicus | 3 |
| Shivon Zilis | Strider, Azure, Arcadia, Seldon Lycurgus | 4 |
| Ashley St. Clair | Romulus | 1 |
| Total | 14 publicly known children | 14 |
This count has changed as previously private births became public. For example, Seldon Lycurgus was announced by Shivon Zilis in 2025, adding to the four children she has with Musk.
Elon Musk Children Names, Birth Years and Mothers
The following table provides a quick overview of the publicly known Elon Musk children names and their family connections.
| Child | Birth Year | Mother | Notes |
| Nevada Alexander | 2002 | Justine Wilson | Died in infancy |
| Griffin | 2004 | Justine Wilson | Twin |
| Vivian Jenna Wilson | 2004 | Justine Wilson | Twin |
| Kai | 2006 | Justine Wilson | Triplet |
| Saxon | 2006 | Justine Wilson | Triplet |
| Damian | 2006 | Justine Wilson | Triplet |
| X Æ A-Xii | 2020 | Grimes | Known as X |
| Exa Dark Sideræl | 2021 | Grimes | Known as Y |
| Strider | 2021 | Shivon Zilis | Twin |
| Azure | 2021 | Shivon Zilis | Twin |
| Techno Mechanicus | 2022 | Grimes | Known as Tau |
| Arcadia | 2024 | Shivon Zilis | Daughter |
| Romulus | 2024 | Ashley St. Clair | Son |
| Seldon Lycurgus | 2025 | Shivon Zilis | Birth date not publicly disclosed |
The list is based on publicly reported family information. Exact dates are not available for every child, so birth years are preferable to inventing precise ages.
Elon Musk’s Children With Justine Wilson
Elon Musk’s first children were born during his marriage to Canadian author Justine Wilson. The couple married in 2000 and had six children together.
Nevada Alexander Musk
Nevada Alexander was Elon Musk’s first child with Justine Wilson. He was born in 2002 but died at 10 weeks old from sudden infant death syndrome, commonly known as SIDS. Wilson later wrote about the loss in a 2010 essay for Marie Claire.
Although Nevada died in infancy, he is included when reporting the total number of children Musk has fathered.
Griffin and Vivian Jenna Wilson
Musk and Wilson later welcomed twins Griffin and Vivian in 2004 after turning to IVF. Griffin has generally maintained a private life compared with some of his siblings, although he has occasionally appeared publicly with his father.
Vivian Jenna Wilson legally changed her name in 2022 and took her mother’s surname. She has since spoken publicly about her relationship with her father, making her one of Musk’s more publicly visible adult children.
Kai, Saxon and Damian
In 2006, Wilson gave birth to triplets Kai, Saxon and Damian. The three boys completed Musk’s six-child family with Wilson.
Unlike some of Musk’s younger children, Kai, Saxon and Damian have largely remained outside celebrity media coverage. Public information about their personal lives is limited, which makes it important not to confuse speculation with verified facts.
Elon Musk’s Children With Grimes
Musk and musician Grimes have three publicly known children together. Their family became particularly recognizable because of the children’s distinctive names.
X Æ A-Xii
X Æ A-Xii was born in May 2020 and is commonly known simply as X. His original name was publicly written as X Æ A-12 before being modified to comply with California naming requirements.
Grimes and Musk have both explained different elements of the unusual name. X has also appeared publicly with his father on several occasions.
Exa Dark Sideræl
Exa Dark Sideræl, born in December 2021, is Musk and Grimes’ second child. She was born via surrogate and is commonly referred to as Y.
Grimes has explained that “Exa” relates to the computing term exaFLOPS, while “Dark” and “Sideræl” have meanings connected with the unknown, space and astronomical time.
The family has generally tried to keep Exa away from excessive public exposure.
Techno Mechanicus
Techno Mechanicus is Musk and Grimes’ third child. His birth was revealed in Walter Isaacson’s biography of Musk, and he is also known by the nickname Tau.
Grimes has emphasized privacy around her youngest child, so relatively little verified information about his personal life is publicly available.
Elon Musk’s Children With Shivon Zilis
Musk has four publicly known children with Shivon Zilis, an executive associated with Neuralink. The first two, twins Strider and Azure, were born in November 2021.
Strider and Azure
Strider and Azure are twins born in 2021. Their names became public after court documents and later public announcements revealed more details about the family.
The twins have generally had a more private childhood than X, who has frequently appeared in public with Musk.
Arcadia
Arcadia is Musk and Zilis’ third publicly known child. Musk confirmed her arrival in 2024, and Zilis later identified her name publicly. Arcadia was born on February 28, 2024.
Seldon Lycurgus
Seldon Lycurgus is Zilis and Musk’s fourth publicly known child. Zilis announced his arrival in February 2025 but did not disclose his exact birth date.
His announcement is important when looking at current Elon Musk children names, because older articles that list only three children with Zilis are now outdated.
Elon Musk’s Child With Ashley St. Clair
Romulus
Romulus is the publicly known child Musk shares with author and commentator Ashley St. Clair. St. Clair announced in February 2025 that she had given birth to a son in September 2024 and identified Musk as the father.
Later reporting provided additional information about paternity and the ongoing family situation. By 2026, major entertainment outlets continued to include Romulus among Musk’s 14 publicly known children.
Because Romulus is a young child, publicly available information should be treated carefully, with priority given to verified family and legal reporting rather than speculation.
Elon Musk Children Timeline
The Elon Musk children timeline shows how his family expanded over more than 20 years:
| Year | Family Event |
| 2002 | Nevada Alexander was born |
| 2004 | Twins Griffin and Vivian were born |
| 2006 | Triplets Kai, Saxon and Damian were born |
| 2020 | X Æ A-Xii was born |
| 2021 | Exa, Strider and Azure were born |
| 2022 | Techno Mechanicus became publicly known |
| 2024 | Arcadia and Romulus were born |
| 2025 | Seldon Lycurgus was publicly announced |
This timeline also explains why older articles may show a smaller number of children. New family information became public at different times, particularly in 2024 and 2025.
How Old Are Elon Musk’s Children?
The Elon Musk children ages vary considerably because they were born between 2002 and 2025.
The oldest living children, Griffin and Vivian, were born in 2004, while the youngest publicly known child, Seldon Lycurgus, was announced in 2025. Nevada Alexander, born in 2002, died in infancy.
Because exact birthdays are not publicly available for every child, it is more accurate to use birth years rather than assign exact ages across the entire family.
For example, in 2026, Griffin and Vivian are approximately 21 or 22 depending on their birthdays, while X is approximately 6. Younger children such as Arcadia, Romulus and Seldon are still toddlers or very young children.
Why Are Elon Musk’s Children’s Names So Unusual?
The names of Elon Musk’s children have attracted almost as much attention as the family itself.
X Æ A-Xii is perhaps the most recognizable example. Grimes has publicly explained elements of the name, while Musk has separately discussed his contribution to it.
Exa Dark Sideræl also has several layers of meaning connected with computing, space and science. Techno Mechanicus is commonly associated with the nickname Tau.
The names Strider and Azure have also received attention because of their unusual choices and the children’s connection to Shivon Zilis.
However, not every explanation found online is reliable. A trustworthy article should distinguish between a parent’s documented explanation and internet speculation.
What Is Publicly Known About Elon Musk’s Children?
One important point when researching Elon Musk children is that not every child has a public profile.
Some of Musk’s children have appeared in interviews, photographs or public events, while others have largely remained private. Their status as celebrity children does not make every personal detail public information.
For that reason, responsible coverage should focus on verified information such as names, publicly announced births, documented family relationships and statements made by the parents or children themselves.
It is also worth remembering that the family count can change if additional information becomes public. The safest wording for an evergreen article is therefore “14 publicly known children as of 2026.”
Conclusion
The story of Elon Musk children spans more than two decades and includes 14 publicly known children with four different mothers. From his first child, Nevada Alexander, to younger children such as Arcadia, Romulus and Seldon Lycurgus, the family has continued to attract public interest.
The Elon Musk children names are especially notable, but the most useful way to understand the family is through its timeline, mothers and publicly documented relationships. Since family information can develop over time, readers should always check the latest reliable reporting for future updates.
Frequently Asked Questions About Elon Musk Children
How many children does Elon Musk have?
As of 2026, Elon Musk has 14 publicly known children with four women. Thirteen are living because his first child, Nevada Alexander, died in infancy.
What are Elon Musk’s children’s names?
The publicly known names are Nevada Alexander, Griffin, Vivian Jenna Wilson, Kai, Saxon, Damian, X Æ A-Xii, Exa Dark Sideræl, Strider, Azure, Techno Mechanicus, Arcadia, Romulus and Seldon Lycurgus.
Who are the mothers of Elon Musk’s children?
The four publicly identified mothers are Justine Wilson, Grimes, Shivon Zilis and Ashley St. Clair. Wilson has six children with Musk, Grimes has three, Zilis has four and St. Clair has one.
How many children does Elon Musk have with Grimes?
Elon Musk and Grimes have three publicly known children: X Æ A-Xii, Exa Dark Sideræl and Techno Mechanicus.
How many children does Elon Musk have with Shivon Zilis?
Musk and Shivon Zilis have four publicly known children: twins Strider and Azure, daughter Arcadia and son Seldon Lycurgus.
Who was Elon Musk’s oldest child?
Nevada Alexander Musk was Elon Musk’s first child. He was born in 2002 to Musk and Justine Wilson and died at 10 weeks old from SIDS.
Who is Elon Musk’s youngest publicly known child?
Seldon Lycurgus is the youngest publicly announced child in the current 14-child count. Shivon Zilis announced him in February 2025, although his exact birth date has not been publicly disclosed.
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