Tech mogul Elon Musk has famously argued that “population collapse is potentially the greatest risk to the future of civilization.” Living up to his “pronatalist” views, Musk has fathered at least 14 children over two decades with four different partners.
Here is a breakdown of his family tree and the complex relationships surrounding it.
1. Children with Justine Wilson (Ex-Wife)
Musk and his first wife, author Justine Wilson, had six children together before divorcing in 2008.
-
Nevada Alexander Musk (2002 – 2002): The couple’s first son died at 10 weeks old due to SIDS. The tragedy later sparked a public dispute, with Wilson refuting Musk’s claim that the child died in his arms, stating, “I was the one who was holding him.”
-
Griffin Musk (Born 2004): A twin born via IVF. Griffin keeps a low profile but occasionally attends events with his father.
-
Vivian Jenna Wilson (Born 2004): Griffin’s twin. Vivian is estranged from her father. In 2022, she legally changed her name and gender, stating she did not wish to be related to Musk “in any way.” In a 2025 interview, she described Musk as an unsupportive “pathetic man-child” and noted she hadn’t spoken to him in years.
-
Kai, Saxon, and Damian Musk (Born 2006): Male triplets born via IVF. While they are mostly private, Musk has occasionally mentioned them on social media, including references to Saxon’s optimism and Damian’s piano skills.
2. Children with Grimes (Claire Elise Boucher)
Musk shares three children with the musician Grimes. Their relationship has been marked by “semi-separations” and custody battles.
-
X Æ A-Xii (Born May 2020): Known as “X,” he is frequently seen in public with Musk, including visits to the Oval Office.
-
Exa Dark Sideræl Musk (Born Dec. 2021): Nicknamed “Y,” she was born via surrogate. Grimes and Musk intended to raise her while living in separate houses.
-
Techno Mechanicus Musk (Born June 2022): Nicknamed “Tau,” his birth was kept secret until September 2023. Grimes later filed a petition to establish parental rights amid custody disputes.
3. Children with Shivon Zilis (Neuralink Executive)
Musk has four children with Zilis, a top executive at his company Neuralink. They reportedly share a family compound in Texas.
-
Strider and Azure (Born Nov. 2021): Twins whose names were revealed in Walter Isaacson’s biography. Grimes has publicly stated that she and Zilis are on good terms and want their children to grow up together.
-
Arcadia (Born 2024): A third child whose birth was initially kept quiet. Zilis celebrated Arcadia’s first birthday publicly in February 2025.
-
Seldon Lycurgus (Announced Feb. 2025): Announced alongside Arcadia’s first birthday, Zilis described their son Seldon as being “built like a juggernaut with a solid heart of gold.”
4. Child with Ashley St. Clair (Conservative Influencer)
The existence of this child was confirmed through legal documents and paternity testing.
-
Romulus (Born Sept. 2024): Originally identified in court papers as R.S.C., a paternity test in 2025 confirmed Musk is the father.
-
The Controversy: While Musk has provided financial support, a legal battle ensued after St. Clair expressed support for gender-affirming care. Musk has stated he intends to seek custody to “protect the child’s welfare,” while St. Clair has petitioned for sole custody.
