Renzo Gracie was born on March 11, 1967, into the legendary Gracie family, a lineage synonymous with Brazilian Jiu-Jitsu excellence. He is the grandson of Carlos Gracie, the founder of Gracie Jiu-Jitsu, and the son of Robson Gracie, a 9th-degree BJJ black belt. From an early age, Renzo trained under influential family members, notably Rolls Gracie and Carlos Gracie Jr., who ultimately awarded him his black belt.

Renzo began his professional fighting career at age 25, debuting in the Gracie Vale Tudo Challenge. Throughout the 1990s, he emerged as a pioneering figure in mixed martial arts, competing extensively in Japan, Brazil, and the United States. Renzo's aggressive grappling style and technical proficiency significantly contributed to the global recognition and popularity of Brazilian Jiu-Jitsu.

Renzo Gracie showcased his elite grappling skills at the ADCC Submission Wrestling World Championship, capturing titles in both 1998 and 2000. His tactical approach, precise submissions, and relentless pressure established him as one of the era's most accomplished submission grapplers.

In 2010, at age 43, Renzo signed with the UFC, facing former champion Matt Hughes. Despite a spirited performance, he lost via third-round TKO. After an eight-year hiatus from competition, Renzo returned to MMA at age 51 in July 2018, competing in a "legends" bout at ONE Championship. Demonstrating his enduring grappling prowess, he defeated Japanese veteran Yuki Kondo by second-round Rear Naked Choke.

Renzo founded the Renzo Gracie Academy (RGA) in New York City, quickly establishing it as one of the world's premier Brazilian Jiu-Jitsu institutions. At RGA, he mentored renowned instructor John Danaher, who later formed the influential Danaher Death Squad. Under Renzo's guidance, elite grapplers such as Gordon Ryan and Garry Tonon earned their black belts and rose to prominence. Additionally, UFC champions Georges St-Pierre and Matt Serra trained extensively at Renzo's academy, further highlighting its significant impact on modern martial arts.

Renzo Gracie has played a pivotal role in globalizing Brazilian Jiu-Jitsu. In the late 1990s, he introduced BJJ to Abu Dhabi, coaching Sheikh Tahnoon bin Zayed, who later founded the prestigious ADCC grappling championship. Renzo awarded Sheikh Tahnoon his black belt, solidifying a lasting legacy in the region. Renzo continues to travel extensively, conducting seminars throughout Europe, the Americas, and the Middle East. In 2019, he was appointed Brazil's Ambassador of International Tourism by Embratur, Brazil's national tourism board. His tenure drew global attention and controversy when he publicly threatened French President Emmanuel Macron during a diplomatic dispute over Amazon forest fires, underscoring his outspoken personality and fierce loyalty to Brazil.

Renzo Gracie attained the prestigious rank of 7th-degree coral belt in Brazilian Jiu-Jitsu, a distinction recognizing over 30 years as a black belt. This honor places Renzo among the senior masters of the art, reflecting his lifelong dedication and contributions as a competitor, instructor, and global ambassador for Brazilian Jiu-Jitsu.

Known for his outspoken and fiery personality, Renzo has frequently been at the center of public attention. In March 2019, during an interview with Marcelo Alonso on the Portal do Vale Tudo (PVT) podcast, Renzo expressed disappointment over an altercation involving his brother Ralph Gracie and Flávio Almeida at the IBJJF World No-Gi Championship. He criticized modern society's tendency toward victimization, referencing the Jussie Smollett incident as an example. Renzo's candid nature and unwavering loyalty to family and country have consistently sparked both admiration and controversy.

Renzo Gracie was prominently featured in the documentary film "Legacy," which chronicles his life, career, and significant contributions to martial arts. The film provides an intimate look at Renzo's competitive achievements, teaching philosophy, and enduring influence on Brazilian Jiu-Jitsu.

Renzo has expressed optimism regarding the future of amateur MMA, envisioning its potential inclusion as an Olympic sport. He believes amateur MMA holds significant promise for growth and global recognition, further cementing martial arts' place within mainstream sports culture.