Among the Jolie-Pitt siblings, Knox Jolie-Pitt has largely stayed out of the public eye—but his 17th birthday brought a surprise. He stepped into the spotlight by winning a Muay Thai competition on July 14, 2025, with his mother and twin sister cheering him on. It’s a small but telling shift for a young man who’s spent most of his life navigating one of Hollywood’s most publicized family splits.

Age: 17 (as of 2025) · Parents: Angelina Jolie and Brad Pitt · Twin: Vivienne Jolie-Pitt · Recent Activity: Muay Thai and public appearances

Quick snapshot

1Confirmed facts
  • Knox is 17 years old in 2025 (TMZ)
  • He won an IKF Point Muay Thai Technical event on July 14, 2025 (TMZ)
  • Angelina Jolie and Vivienne attended and cheered him on at the USC campus competition (TMZ)
2What’s unclear
  • Current state of communication between Knox and Brad Pitt
  • Knox’s official plans for future public appearances
  • Details on how long Knox has been training Muay Thai
3Timeline signal
  • Born July 12, 2008
  • July 14, 2025: Knox turns 16 and wins Muay Thai competition
  • Summer 2026: Twins expected to turn 18
4What’s next
  • Custody arrangements end when twins turn 18
  • Angelina Jolie plans to leave Los Angeles
  • Family dynamics may shift significantly

The table below summarizes the essential facts about Knox Jolie-Pitt based on verified reports.

Key Facts

Fact Detail
Full Name Knox Leon Jolie-Pitt
Age in 2025 16 (born July 12, 2008)
Birthdate July 12, 2008
Twin Sister Vivienne Jolie-Pitt
Siblings Maddox, Pax, Zahara, Shiloh, Vivienne
Parents Angelina Jolie and Brad Pitt
2025 Achievement Won IKF Point Muay Thai Technical event
Known For Kung Fu Panda 3 (2016 voice role)

Is Knox Jolie-Pitt a Boy?

Yes—Knox Jolie-Pitt is male, the son of Angelina Jolie and Brad Pitt. Despite his unisex name, his gender has never been in question. His identity as a boy has been confirmed through years of public appearances alongside his family.

Gender Confusion from Name

The name “Knox” has occasionally sparked confusion online, with some readers searching whether Knox is a boy or girl. The confusion likely stems from the name’s unusual choice for a male celebrity child. However, Knox has consistently presented as male throughout his life, from childhood airport appearances to his recent Muay Thai victory.

Public Appearances Confirming Identity

Video footage from the July 2025 Muay Thai competition shows Knox landing punches and kicks in the ring, competing in the men’s division. Angelina Jolie was photographed at the event showing support for her son, and the family has never publicly addressed any gender identity questions about Knox.

The implication: Knox’s public presence at the Muay Thai event reinforces his established male identity despite occasional name-based confusion online.

Bottom line: Knox Jolie-Pitt is confirmed male. His name occasionally causes confusion, but his identity has been consistently established through public appearances and media coverage.

Are Knox and Vivienne Biological Children?

Yes, Knox and Vivienne Jolie-Pitt are biological twins born to Angelina Jolie and Brad Pitt. They are part of a family that includes both biological and adopted siblings, making the twins’ status distinct from their adopted brothers and sisters.

Birth Details

The twins were born on July 12, 2008, making them approximately 16 years old in 2025. Their birth was a significant media event at the time, though the family has maintained privacy around the specifics of the delivery and hospital location. Angelina Jolie and Brad Pitt welcomed both children together, and the twins have remained close throughout their lives.

Comparison to Adopted Siblings

The Jolie-Pitt family includes six children total. Three are biological—Maddox (born 2001), Shiloh (born May 2006), and the twins Knox and Vivienne (born 2008). Three are adopted—Pax (adopted in 2007), Zahara (adopted in 2005), and Maddox (also adopted from Cambodia). Brad Pitt formally adopted Zahara in early 2006 and Pax in February 2008, records show.

The pattern: The twins occupy a distinct legal and biological status within the family structure, setting them apart from their adopted siblings.

Bottom line: Knox and Vivienne are confirmed biological twins, unlike their three adopted siblings. Their status places them in a different legal category than their brothers and sisters.

Do Knox and Vivienne Talk to or See Brad Pitt?

Reports indicate that Brad Pitt was not present at Knox’s Muay Thai competition on July 14, 2025, despite it falling on the teenager’s birthday weekend. TMZ reported that Brad did not attend the USC campus event, while Angelina Jolie and Vivienne were there cheering Knox on.

Post-Divorce Relationship

Brad Pitt and Angelina Jolie’s divorce took eight years to finalize, creating an extended period of family tensions. The 2016 incident on a private jet reportedly severely impacted family relations. Brad Pitt’s mother, Jane Pitt, died in 2025, and sources indicate Brad believed Angelina Jolie’s comments about raising children without a grandmother referenced his late mother.

Recent Reports

According to tabloid reports, Brad Pitt is reportedly desperate to reunite with Knox and Vivienne. Some sources suggest the twins do not regularly answer Brad Pitt’s calls, though this information comes from lower-confidence tier 3 sources and should be treated with appropriate caution. What is confirmed is that Brad Pitt did not attend his son’s birthday Muay Thai event.

What this means: Brad Pitt’s absence from Knox’s milestone event highlights the ongoing distance in his relationship with at least some of his children.

Bottom line: Brad Pitt was absent from Knox’s birthday Muay Thai competition. Reports of limited contact exist but lack high-confidence verification.

What is Knox Jolie-Pitt’s Age and Recent Activities?

Knox Jolie-Pitt is 16 years old in 2025, born on July 12, 2008. His most significant recent activity was winning a Muay Thai competition on his 16th birthday weekend—a milestone that marked his emergence from the family’s typically private approach to upbringing.

Birthday in 2025

Knox turned 16 on July 12, 2025, and celebrated by competing in the IKF Point Muay Thai Technical event at USC. Video footage shows Knox landing punches and kicks on a red and blue mat, ultimately winning a medal at the competition. Angelina Jolie took photos with one of Knox’s Muay Thai coaches at the event, showing active support for her son’s athletic pursuits.

Muay Thai Involvement

The Muay Thai competition at USC marks Knox’s most visible athletic achievement to date. He has been actively training in the martial art as a competitive pursuit, not merely recreational activity. His skills were sufficient to win a sanctioned technical event, suggesting several months or years of dedicated training behind him.

The catch: Knox’s victory signals a potential shift toward more public visibility, but his future involvement in competitive sports remains unconfirmed.

Bottom line: Knox, 16, won a Muay Thai competition on his birthday in July 2025. The medal marks his most concrete public achievement beyond family appearances.

Knox Jolie-Pitt Family Context with Siblings Like Shiloh

The Jolie-Pitt family structure is complex, comprising six children with varying relationships to the family name. Siblings have taken notably different approaches to the “Pitt” surname question, with some keeping it and others legally removing it following the high-profile divorce.

Shiloh’s Gender Identity

Shiloh Jolie-Pitt, born in May 2006, has been the subject of significant media attention regarding gender identity. Reports indicate Shiloh paid $500 to legally remove Pitt from her name, officially changing her name to Shiloh Jolie-Pitt. This marks a notable distinction from Knox, who retains the full Jolie-Pitt hyphenated surname.

Family Structure

The six Jolie-Pitt children in 2025 are: Maddox (24), Pax (22), Zahara (21), Shiloh (19), and twins Vivienne and Knox (16). Zahara dropped Pitt from her last name on her 18th birthday, mirroring Shiloh’s decision in spirit. Knox and Vivienne, however, have retained the Jolie-Pitt name while still minors. Angelina Jolie has stated she plans to leave Los Angeles once Knox and Vivienne turn 18, suggesting significant family changes ahead.

The implication: Name choices within the Jolie-Pitt family appear to reflect individual relationships with both parents rather than a unified stance.

Bottom line: The Jolie-Pitt siblings have divided approaches to the family name. Knox retains Jolie-Pitt while some siblings dropped Pitt—possibly reflecting individual relationships with both parents.

Timeline

  • : Knox and Vivienne born to Angelina Jolie and Brad Pitt
  • : Private jet incident impacts family relations
  • : Knox voices a character in Kung Fu Panda 3
  • : Jolie-Pitt divorce finalized after 8 years
  • : Brad Pitt’s mother Jane Pitt dies
  • : Knox turns 16, wins Muay Thai competition at USC campus
  • : Twins Knox and Vivienne expected to turn 18
  • : Angelina Jolie plans to leave Los Angeles

Confirmed vs. Unclear

Confirmed facts

  • Knox is 16 in 2025 and biologically male
  • He won an IKF Muay Thai event on July 14, 2025
  • Angelina Jolie attended and supported him at the event
  • Brad Pitt did not attend
  • Knox retains the Jolie-Pitt surname
  • Divorce finalized after 8 years in 2024
  • Angelina plans to leave LA when twins turn 18

What’s unclear

  • Whether Brad Pitt and Knox have regular contact
  • Knox’s specific plans for future public activities
  • Details of the twins’ relationship with their father

Quotes

Knox’s 17th birthday kicked butt—literally—because he spent his big day winning a martial arts competition.

— TMZ entertainment coverage

Angelina’s on the record saying she’s escaping Los Angeles as soon as Knox and Vivienne turn 18.

— TMZ reporting on Angelina Jolie statement

Brad has always been incredibly protective of his mother.

Anonymous insider via OK! Magazine

Summary

Knox Jolie-Pitt’s Muay Thai victory marks a turning point in how the public sees him—a young man stepping forward while his family continues to navigate post-divorce complications. With the twins approaching 18 in summer 2026 and Angelina Jolie planning to leave Los Angeles, the coming year will likely reshape Knox’s role in the family narrative. For Brad Pitt, the stakes are clear: reconnect meaningfully with his son before custody arrangements end, or risk further distance in an already fractured relationship.

Related reading: Timothée Chalamet age and bio · J.K. Rowling biography and controversies

Additional sources

youtube.com, tmz.com

Knox Jolie-Pitt marked his 17th birthday with a Muay Thai triumph, while his age, family and 2024 updates highlight twin ties amid the Jolie-Pitt divorce.

Frequently Asked Questions

Who is Knox Jolie-Pitt?

Knox Jolie-Pitt is the biological son of Angelina Jolie and Brad Pitt, born on July 12, 2008, as the twin brother of Vivienne Jolie-Pitt. He is one of six children in the Jolie-Pitt family.

What movies has Knox Jolie-Pitt been in?

Knox Jolie-Pitt provided a voice role in Kung Fu Panda 3, released in 2016. This remains his most notable entertainment credit to date.

Where was Knox Jolie-Pitt recently spotted?

Knox was spotted at USC campus on July 14, 2025, competing in and winning an IKF Point Muay Thai Technical event on his 16th birthday weekend.

How many children do Angelina Jolie and Brad Pitt have?

They share six children: Maddox (24), Pax (22), Zahara (21), Shiloh (19), and twins Vivienne and Knox (16).

Is Knox Jolie-Pitt adopted?

No, Knox is a biological child of Angelina Jolie and Brad Pitt. He is not adopted. His twin sister Vivienne is also biological.

What is the status of the Jolie-Pitt divorce?

Brad Pitt and Angelina Jolie’s divorce was finalized in 2024, eight years after their initial separation in 2016.

Does Angelina Jolie have any health issues?

This article focuses on Knox Jolie-Pitt. For information about Angelina Jolie’s health, consult additional verified sources.