Nate Diaz is an American professional mixed martial artist and boxer who made his UFC debut in 2007. He has competed in both the Lightweight and Welterweight divisions during his combat sports career. Diaz is also widely recognized as the younger brother of fellow UFC fighter Nick Diaz. Over the years, he has built a reputation for being outspoken and direct, both inside and outside competition, and has frequently drawn attention for his public stance advocating cannabis use.
His career spanning multiple weight classes since his 2007 UFC debut highlights his adaptability in mixed martial arts competition. Being part of the Diaz family has also linked him to one of the sport’s most recognizable sibling duos alongside Nick Diaz. Outside fighting, his advocacy for cannabis use has contributed to broader conversations within combat sports communities about athlete perspectives and personal expression.