Who Are Elon Musk's Baby Mamas? He's Welcomed a 14th Child
"A collapsing birth rate is the biggest danger civilization faces by far," Elon Musk said in a post to X.
Updated March 5 2025, 9:31 a.m. ET
Business magnate Elon Musk is officially a father to 14 children.
The wealthiest person in the world is seemingly determined to keep increasing his own wealth, as well as his legacy. Though Elon is arguably most recognized for fathering children with popular musician Grimes, she has only given birth to three of his 14 total offspring. Let's break down who each of his baby mamas are (and how many children he has with each).
Baby Mama No.1 — Justine Musk.
Elon's first baby mama is none other than his first wife, Justine Musk (née Wilson).
She is a Canadian author, best known for her 2005 contemporary fantasy novel, BloodAngel. The pair met while attending Queen's University in Ontario, Canada, and eventually tied the knot in January 2000.
In 2002, Elon and Justine welcomed their first child, Nevada Alexander; however, their son died of Sudden Infant Death Syndrome at just 10 weeks old. After losing their firstborn, the former couple turned to IVF. In 2004, Justine gave birth to twins Griffin and Vivian. Two years later, the novelist gave birth to triplets — Kai, Saxon, and Damian — via IVF.
Elon and Justine divorced in 2008.
Baby Mama No.2 — Claire Boucher, aka Grimes.
Following his split from actor Amber Heard, the Tesla CEO began dating Canadian singer Grimes in May 2018. She's released five studio albums, amassing a large fandom due to her eccentricity and versatility as an artist.
According to Page Six, the former couple met via X (then known as Twitter) after Elon planned to post a pun relating to Rococo and the thought experiment Roko's basilisk and discovered that Grimes had posted it three years prior. Wow, talk about an unexpected pairing.
In May 2020, Grimes gave birth to her and Elon's son, X AE A-Xii. He was initially named X Æ A-12, but his name was changed to adhere to California's naming laws.
Elon and Grimes broke up in September 2021; however, the "Genesis" vocalist revealed in March 2022 that she and the SpaceX founder welcomed baby No. 2, a daughter called Exa Dark Sideræl, via surrogate. In 2023, they welcomed their third child, Techno Mechanicus.
The exact timeline of Elon's relationship with Grimes is a bit unclear, though it's obvious that while they were seeing each other, Elon was also seeing baby mama No. 3, as the birth dates for many of the singers' children overlaps with Elon's other new additions to the family.
Baby Mama No.3 — Shivon Zilis.
On July 6, 2022, Business Insider reported that Elon welcomed twins Strider Sekhar Sirius and Azure Astra Alice in November 2021 with one of his top Neuralink executives, Shivon Zilis. According to the court documents obtained by the outlet, the pair requested to change their children's names to "have their father’s last name and contain their mother’s last name as part of their middle name."
The founder and CEO of SpaceX has publicly stated following the birth of his first children with Shivon that he's "Doing [his] best to help the underpopulation crisis," arguing that "a collapsing birth rate is the biggest danger civilization faces by far."
In June 2024, Elon confirmed that he and Shivon welcomed another child, a son named Arcadia. Less than a year later, they welcomed another son, Seldon Lycurgus, into the world, per USA Today.
"All our friends and family know. Failure to issue a press release, which would be bizarre, does not mean 'secret.," he told Page Six of the most recent birth.
According to her official X account, Shivon hails from Canada but currently resides in San Francisco. She attended Yale, studying economics and philosophy; she also played on the ice hockey team as the goalie before graduating in 2008. She currently serves as the director of operations and special projects for Neuralink.
Baby Mama No.4 — Ashley St. Clair.
According to People, Elon had a child in September 2024 with author and conservative influencer Ashley St. Clair. Their son, who goes by R.S.C., has allegedly seen Elon three times since his birth. Ashley is suing Elon for sole custody of their son. Her attorney said in a statement, "Mr. Musk spends more time on his own social media platform talking about his children’s mothers than talking to them."
The custody application also includes screen grabs of text messages allegedly between Ashley and Elon, per Newsweek. In them, Elon purportedly said, "I want to knock you up again." In February 2025, he allegedly texted and said they "have a legion of kids to make."