4 Things To Know About Jaxson Dart's Siblings: The Rising Star Brother And Private Sisters

Jaxson Dart's family life, particularly the dynamics with his siblings, has become a major point of interest as the young quarterback continues his ascent in the professional football world. As of December 2025, the New York Giants signal-caller is one of four children, a detail that often surprises fans who primarily follow his on-field career. His family provides a crucial foundation, with a younger brother following closely in his athletic footsteps and two younger sisters who maintain a deliberate distance from the public eye.

The Dart family is a true sports dynasty, rooted deeply in Utah athletics and now extending its reach into the NFL. The intense curiosity surrounding his siblings—especially his brother, Diesel Dart—is a testament to the family's collective talent and the potential for another generation of high-level athletes. This article dives into the details of Jaxson Dart's three younger siblings, their burgeoning careers, and the close-knit family unit that supports the NFL star.

Jaxson Dart: A Quick Family Biography and Profile

Jaxson Chase Dart was born into an athletic family, setting the stage for his own career as a standout quarterback.

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• Full Name: Jaxson Chase Dart
• Current Team: New York Giants (NFL)
• Position: Quarterback (QB)
• Born: May 13, 2003
• Hometown: Kaysville, Utah
• Parents: Brandon Dart (Father) and Kara Dart (Mother)
• Father's Athletic History: Brandon Dart was a former collegiate safety for the University of Utah Utes.
• Mother's Profile: Kara Dart is a well-known fitness enthusiast and a highly visible "superfan" who frequently supports her sons' teams.
• Siblings: One younger brother, Diesel Dart, and two younger sisters (names kept private).
• High School: Corner Canyon High School (Draper, Utah)
• College Career: USC Trojans (2021), Ole Miss Rebels (2022-2024)
• Current Update (December 2025): Dart is currently navigating his rookie season in the NFL with the New York Giants.

The Next Generation: Meet Jaxson's Brother, Diesel Dart

The most prominent of Jaxson Dart's siblings is his younger brother, Diesel Dart. Diesel is not just a younger sibling; he is a formidable athlete in his own right, often drawing comparisons to the dynamic of other famous football brothers, like the Kelce siblings.

A Three-Star Prospect on the Rise

Diesel Dart is rapidly making a name for himself in the high school football circuit. He currently attends Corner Canyon High School in Draper, Utah, the same school that launched Jaxson’s career.

He is already classified as a three-star prospect in the highly-anticipated 2027 recruiting class.

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His versatility is a key feature of his game. Diesel plays both sides of the ball, excelling as a wide receiver on offense and a defensive back/safety on defense.

Following the Ole Miss Path?

The college recruitment process for Diesel is already in full swing, and there is significant buzz about where he will ultimately play. In a major nod to his brother's collegiate success, Diesel has already received a scholarship offer from the Ole Miss Rebels.

The opportunity to follow in Jaxson's footsteps at Ole Miss—where Jaxson set numerous records—is a compelling narrative that many college football fans are tracking closely.

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In addition to football, Diesel is a multi-sport athlete, also playing basketball for Corner Canyon. This dedication across multiple sports highlights the strong athletic genes inherited from both his father, Brandon Dart (a former college safety), and his mother, Kara Dart.

The Private Lives of Jaxson Dart's Two Younger Sisters

While the spotlight shines brightly on Jaxson and is beginning to follow Diesel, the two youngest members of the Dart family—Jaxson's two younger sisters—have maintained a strict level of privacy.

The names of Jaxson's younger sisters are not widely known to the public, a conscious decision by the family to keep them out of the media glare that follows a high-profile NFL quarterback.

Despite their low public profile, Jaxson has often mentioned his sisters as being among his biggest supporters. He has previously shared posts on social media from 2021, emphasizing the importance of all his younger siblings in his life and career journey.

This commitment to privacy is understandable, especially given the intense scrutiny that comes with having a professional athlete in the family. It allows the younger sisters to enjoy a more normal life away from the pressures of collegiate and professional sports.

The Dart Family: A Foundation of Athleticism and Support

The entire Dart family unit is a powerful support system for Jaxson and Diesel. The family's deep roots in athletics, particularly in the state of Utah, have instilled a competitive and disciplined spirit in all the children.

Brandon Dart: The Former Utah Ute

Jaxson's father, Brandon Dart, played safety for the University of Utah, providing a direct lineage of high-level football experience. This background means Jaxson and Diesel have access to a wealth of knowledge and mentorship directly from their dad.

Kara Dart: The Superfan and Fitness Role Model

Kara Dart, Jaxson’s mother, is arguably the most visible member of the family outside of the players themselves. Known for her dedication to fitness, she is a constant presence at her sons' games, earning the title of a "superfan."

Her public support and enthusiasm have made her a beloved figure among fans of both Ole Miss and the New York Giants. She often shares family moments and motivational content, reinforcing the tight-knit bond of the Dart family.

The collective effort of the Dart parents to balance public support with protecting the privacy of their two youngest daughters demonstrates a commitment to their children's well-being, regardless of their athletic aspirations. The story of Jaxson Dart's siblings—one rising star and two private figures—is a perfect example of a modern sports family navigating fame and tradition.