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Nick Diaz

Nick Diaz is an American professional boxer and mixed martial artist from Stockton, California.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Nick Diaz is an American professional boxer and mixed martial artist from Stockton, California. He is a former Strikeforce, WEC, and IFC welterweight champion and has also competed in the UFC, PRIDE, EliteXC, DREAM, and Shooto. Diaz is the older brother of fellow MMA fighter Nate Diaz.

Early life and background

Nick Diaz was born in Stockton, California, and became a professional fighter in 2001. He is widely associated with the Cesar Gracie Jiu-Jitsu team and Stockton-based training culture.

Mixed martial arts career

Diaz competed in several major MMA promotions, including UFC, Strikeforce, WEC, PRIDE, EliteXC, DREAM, and Shooto. He won welterweight titles in Strikeforce, WEC, and IFC.

Professional boxing

In addition to MMA, Diaz has also fought professionally as a boxer. Sources identify him as a professional boxer alongside his MMA career.

Family

Diaz is the older brother of Nate Diaz, another prominent MMA fighter and former UFC competitor. Their sibling relationship is one of the most recognized family ties in MMA.

Key facts

  • Nick Diaz is a former Strikeforce, WEC, and IFC welterweight champion.
  • He has competed in multiple major MMA promotions including UFC, PRIDE, and Strikeforce.
  • Diaz also has a professional boxing career.
  • His last recorded fight was a loss to Robbie Lawler at UFC 266 on September 25, 2021.
  • He is the older brother of fellow MMA fighter Nate Diaz.
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Canadian context

Nick Diaz has no strong Canada-specific connection in the provided sources, but he is a major North American MMA figure familiar to Canadian combat sports audiences.

Frequently asked questions

Who is Nick Diaz?
Nick Diaz is an American professional boxer and mixed martial artist from Stockton, California, known for competing in the UFC, Strikeforce, PRIDE, and other major promotions.
Nick Diaz age
Nick Diaz was born on August 2, 1983, so he is 42 years old as of July 23, 2026.
Nick Diaz fight record
UFC Stats and Tapology list his professional MMA record as 26 wins, 10 losses, and 2 no contests.
Nick Diaz last fight
His last recorded fight was against Robbie Lawler at UFC 266 on September 25, 2021, which he lost by KO/TKO in round 3.
Nick Diaz net worth
No authoritative net worth figure is provided in the available sources.
Nick Diaz brother
Nick Diaz is the older brother of Nate Diaz, who is also a professional mixed martial artist.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Nick_Diaz
    Supports: Birth name, birth date, nationality, career overview, former titles, and that Nate Diaz is his brother
  2. UFC — https://www.ufc.com/athlete/nick-diaz
    Supports: Professional status, UFC background, brother Nate Diaz, and career highlights
  3. ESPN — https://www.espn.com/mma/fighter/_/id/2335709/nick-diaz
    Supports: Birthdate, team, stance, reach, and fight history including last fight result
  4. Tapology — https://www.tapology.com/fightcenter/fighters/nick-diaz
    Supports: Pro MMA record, last fight date, and disclosed career earnings
  5. UFC Stats — http://ufcstats.com/fighter-details/f57a8a52ca401ed9
    Supports: Official record listing and physical stats