5 Surprising Facts About Julz Dunne: The 'Mastermind' Sister Behind Livvy Dunne's Social Media Empire

The curiosity surrounding Livvy Dunne’s family life continues to grow, but one name consistently emerges as the true "secret mastermind" behind the LSU star's meteoric rise: her older sister, Julz Dunne. As of December 18, 2025, Julz has stepped out of the shadow of her famous sibling, revealing her crucial role not just as a supportive family member but as the chief architect of Livvy’s multi-million dollar social media empire and Name, Image, and Likeness (NIL) success. Julz Dunne is far more than just "Livvy’s sister"; she is a college graduate, a content editor, a rising influencer in her own right, and a constant presence in Livvy's life, from the LSU sidelines to recent high-profile events like the Kentucky Derby and Coachella. This article delves into the updated biography and five surprising facts about Julianna "Julz" Dunne, exploring her career, her academic background, and the inseparable bond she shares with the world's most-followed college athlete.

Julz Dunne: Complete Biography and Profile

Julz Dunne, whose full name is Julianna Dunne, is the older sister of artistic gymnast and social media sensation Olivia "Livvy" Dunne. While Livvy is the face of the brand, Julz is widely credited as the behind-the-scenes genius managing the content creation and editing that fuels Livvy's massive following on platforms like TikTok and Instagram. Their close relationship and collaborative professional dynamic have made them one of the most successful sister duos in the NIL era of college sports.

• Full Name: Julianna "Julz" Dunne
• Date of Birth: February 2001
• Age (as of Dec 2025): 24 years old
• Hometown: Westwood, New Jersey (grew up in Hillsdale, New Jersey)
• Parents: Katherine and David Dunne
• Sibling: Olivia "Livvy" Paige Dunne (Younger Sister)
• Education: Louisiana State University (LSU)
• Degree: Kinesiology
• Known For: Older sister of Livvy Dunne, social media content editor, and rising influencer.
• Past Athletics: Reportedly played softball.
• Current Role: Works closely with Livvy Dunne, managing and editing her social media content.

The 'Secret Mastermind' Behind Livvy's $6 Million Empire

The term "mastermind" is not an exaggeration when describing Julz Dunne's role in her sister's career. Livvy Dunne herself has publicly confirmed that Julz is the true brains behind the operation.

When Livvy was balancing her rigorous training schedule as an LSU artistic gymnast with her burgeoning social media presence, Julz stepped in to handle the time-consuming aspects of content creation.

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Their workflow involved Livvy shooting the raw footage, often during short breaks, and then sending it off to Julz. Julz would then take over the critical task of editing, adding music, and ensuring the content was perfectly tailored for platforms like TikTok.

This teamwork allowed Livvy to focus on her gymnastics career while simultaneously building a massive audience. The result is a combined social media reach of over 13.5 million followers and one of the highest NIL valuations in college sports, cementing Julz’s status as a key business partner.

Julz Dunne’s Own Rise as a Social Media Sensation

While her primary focus is managing her sister's brand, Julz Dunne has also cultivated a significant following of her own. Her natural presence and frequent appearances in Livvy’s videos have made her a recognizable figure, and she now uses her own platforms to share glimpses into her life and her close bond with Livvy.

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Julz's content often features funny, relatable sister moments, including playful teasing and behind-the-scenes looks at their travels and daily life.

Her own popularity is a testament to her engaging personality, with fans appreciating her supportive role and her ability to keep Livvy grounded. This organic growth has led Julz to become a rising influencer, often seen side-by-side with Livvy at major events.

Recent high-profile appearances, such as their matching outfits at the Kentucky Derby and Julz turning heads in a sheer black fit at Coachella, have further boosted her visibility in 2025, proving she can command attention on her own.

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The LSU Connection: Kinesiology and Support

Like her younger sister, Julz Dunne is a proud alumna of Louisiana State University (LSU).

She graduated with a degree in Kinesiology, the study of body movement, which provides an interesting academic background for someone so closely involved with a high-level artistic gymnast and athlete.

Julz's time at LSU overlapped with Livvy's, strengthening their bond during their college years.

Throughout Livvy’s gymnastics career, Julz has been her biggest cheerleader, often sharing emotional posts and being a constant source of encouragement, particularly during Livvy's final meets.

Her presence on campus and at events highlights the unwavering support of the Dunne family, which includes their parents, Katherine and David Dunne, who have guided both daughters throughout their careers.

A Close Bond and Lavish Gifts: The Sisterly Relationship

The relationship between Livvy and Julz Dunne is characterized by an unbreakable bond and mutual support. They are often described as best friends, despite the one-year age difference (Julz is older).

Their closeness is evident in their joint social media content, which is full of playful rivalry and genuine affection. Julz is known for making fun of Livvy on social media, which adds a relatable layer to their celebrity status.

Livvy often shows her gratitude for Julz’s work in managing her brand through lavish gifts. In one recent example, Livvy surprised her sister with a brand-new Jeep as an early birthday present, a gesture that Julz excitedly shared with her own followers.

This exchange of gifts and public displays of affection underscore the fact that their relationship is a personal one first and a professional one second, a key reason why the "Livvy Dunne sister" entity has become such a compelling and successful part of the overall Livvy Dunne brand narrative. Julz Dunne is not just a sibling; she is a vital pillar of the entire Dunne family success story.