Nick Diaz Biography: Age, Wife, Net Worth, UFC, MMA, Career, Stockton, Height, YouTube

Nicholas Robert Diaz also known as Nick Diaz is a legendary American mixed martial artist, professional boxer, and pioneer of the UFC welterweight division.

Known for his high-volume boxing, elite Brazilian jiu-jitsu, relentless pressure, and Stockton roots, he became a Strikeforce, WEC, and IFC Welterweight Champion while inspiring a generation with his fearless style and no-nonsense attitude inside and outside the cage.

Quick Facts

• Full Name: Nicholas Robert Diaz
• Stage Name: Nick Diaz
• Born: August 2, 1983
• Age: 42 years old
• Birthplace: Stockton, California, United States
• Nationality: American
• Ethnicity: Mexican and Anglo
• Occupation: Mixed Martial Artist, Professional Boxer
• Height: 6 feet 1 inch (185 cm)
• Religion: Christianity
• Parents: Robert Diaz and Melissa Diaz
• Siblings: Nate Diaz and Nina Diaz
• Spouse: Kayla Diaz
• Children: Unknown
• Relationship: Married
• Net Worth: $8 million USD

Early Life and Education

Nicholas Robert Diaz was born on August 2, 1983, in Stockton, California, United States. He was brought up primarily by his mother Melissa Diaz after his parents separated, with his father Robert Diaz not being around much during his childhood. He grew up with a younger brother Nate Diaz and a younger sister Nina Diaz in a challenging environment in Stockton.

Nick attended Tokay High School in Lodi, California, for one year before dropping out and participated in the swim team as a freshman. He began training in karate, aikido, wrestling, and sambo at a young age before focusing on mixed martial arts under Cesar Gracie. His ethnicity is Mexican and Anglo. His religion is Christianity.

Career

Nick Diaz turned professional in mixed martial arts in 2001 and quickly rose through the ranks with his cardio, boxing skills, and ground game. He captured the IFC Welterweight Championship early in his career and later won the WEC Welterweight title. In Strikeforce he became the Welterweight Champion with memorable victories. Joining the UFC, he competed against top fighters including Georges St-Pierre, Anderson Silva, and others, earning a reputation for exciting wars and high fight IQ.

Trained at Cesar Gracie Jiu-Jitsu where he earned a black belt, Nick is known for his southpaw stance and closed guard. He has 26 wins including 13 by knockout and 8 by submission. After a long hiatus due to injuries and personal challenges, Nick returned to training in 2026, celebrating sobriety and teasing a comeback run toward another title shot. He has also ventured into boxing and continues to influence MMA through his academy and the iconic Diaz brothers legacy.

Social Media

• Instagram Handle: @nickdiaz209
• YouTube Channel: Nick Diaz

Personal Life

Nick Diaz, 42 years old, is married to Kayla Diaz, his longtime partner whom he wed in Las Vegas in January 2026. There are no publicly confirmed children. He had a significant past relationship with his high school girlfriend Stephanie who tragically died by suicide before his pro debut, an event that deeply motivated his fighting career.

He was also in a long-term relationship with Heather Nikole in previous years. Nick prioritizes family, trains with his brother Nate, and advocates for cannabis use while focusing on sobriety in recent times. His height is 6 feet 1 inch (185 cm).

Net Worth

Nick Diaz’s net worth is estimated at $8 million USD. His income primarily comes from UFC and Strikeforce fight purses, pay-per-view bonuses, and career earnings exceeding $2.3 million from bouts alone. Additional revenue streams include sponsorships, brand deals, his 209 apparel and movement, training seminars, gym operations, and real estate investments.