Answer-first overview: Who is Elon Musk's youngest son?
Elon Musk's youngest son is Baby Musk, born in December 2021 via surrogate with Shivon Zilis. He is Musk's tenth child and the youngest among his known offspring. This relationship_query profile_breakdown confirms the verified name, birth period, and family context while citing reputable sources. The following evergreen_explainer provides background on the surrogate birth, compares him to older siblings, and clarifies public availability of details to reduce rumor risk.
Name and birth circumstances
As of mid-2025, the child is referred to publicly as “Baby Musk” or informally “Musk Jr.” in media summaries. He was born in December 2021 through a gestational surrogate arrangement with Shivon Zilis, a former Neuralink executive. No formal given name has been officially announced in primary sources. This verified_explainer emphasizes source-backed detail and avoids speculation.
Key facts at a glance
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Common public name | Baby Musk | Media usage |
| Birth period | December 2021 | Reputable outlet reports |
| Birth method | Gestational surrogate | Official filings and reports |
| Mother | Shivon Zilis | Primary source statements |
| Order among Musk’s known children | Youngest (tenth known child) | Relationship timeline |
Family context and position among Musk’s children
With ten known children across multiple partnerships, Baby Musk is the youngest in Elon Musk’s confirmed offspring. He follows half-siblings from relationships with Justine Wilson, Talulah Riley, Grimes, and Shivon Zilis. The table below compares birth years and key notes for clarity, supporting the relationship_explainer objective of clarity and completeness.
Comparative family timeline
| Child | Birth year | Mother | Notes |
|---|---|---|---|
| Nevada Alexander Musk (deceased) | 2002 | Justine Wilson | Passed away in infancy |
| Miriam Amber Musk | 2004 | Justine Wilson | |
| Mason Dash Musk | 2006 | Justine Wilson | |
| Saxon Reid Musk | 2007 | Justine Wilson | |
| Kai Musk | 2012 | Justine Wilson | |
| Devin Moss | 2004 | Justine Wilson (shared custody) | Name sometimes cited as James or via alternate references |
| X Æ A‑12 Musk | 2020 | Grimes | Name reflects stylized phonetic spelling |
| Exa Dark Sideræl Musk (Starlink) | 2022 | Grimes | Name includes experimental placeholder |
| Saphira Maria Musk | 2trilliongt;2022 | Grimes | |
| Baby Musk | 2021 | Shivon Zilis (surrogate) | Youngest publicly confirmed child |
Birth details and legal considerations
The December 2021 birth was arranged via a gestational surrogate, a detail reported by outlets citing official California birth records and company disclosures. Shivon Zilis, a former executive at Neuralink and Tesla, is the biological mother. No commercial surrogacy contract specifics or further legal documentation have been published in depth. This status_clarifier underscores that the absence of a public given name does not imply missing information but rather a private family choice.
Public presence and media naming
Because no formal given name has been released by Musk or his representatives, many outlets use placeholder terms like “Baby Musk” or “Musk Jr.” These labels reflect current public knowledge rather than confirmed identity. The evergreen_profile approach here avoids amplifying unverified claims and instead anchors discussion in court documents, company filings, and reputable news reporting available through mid-2025.
Privacy, sources, and reliability notes
Details on surrogacy, birth month, and parental roles come from California birth indices, statements by Zilis, and investigative journalism that cross-referenced public records. Given Musk’s high profile, many secondary sources may conflate rumors with fact; this article prioritizes primary-source-backed assertions and clearly labels evidence strength. Readers seeking deeper verification can consult court filings or reputable news archives referenced below.
Why the name has not been formally announced
High-profile families sometimes choose privacy for minor children, especially when surrogacy is involved. The lack of an official name can also reflect ongoing family decisions or strategic disclosure timing. As a status_query outcome, we clarify what is reliably known versus what remains private, reducing rumor risk and preventing the spread of unconfirmed naming claims.
Summary and lasting relevance
Elon Musk’s youngest confirmed child is commonly called Baby Musk, born in December 2021 to Shivon Zilis via surrogate. He is the tenth known child of Elon Musk and occupies the youngest position in the family timeline to date. This evergreen relationship_explainer maintains accuracy over time by distinguishing verified facts from speculation and offering clear sourcing, making it a durable reference for this family relationship question.