Rener Gracie (born 10 November 1983) is a Brazilian jiu-jitsu (BJJ) black belt[a] instructor, coach, and inventor.

One of the most recognisable figures in modern Brazilian jiu-jitsu,[2][3][4] Gracie is a well-known and popular coach[5][6][7] who has helped develop some top UFC competitors, such as Ronda Rousey, Brian Ortega, Brendan Schaub, Javier Vazquez and Lyoto Machida as well as WWE wrestler CM Punk and pro boxer Ryan Garcia.

An inventor and entrepreneur, Gracie founded Quikflip, a garment converting into a backpack, which was featured on ABC's Shark Tank and named as one of Time Magazine 2019 best inventions.

[11] In May 2003 he won the Southern California Pro-Am Invitational, a no-gi, no time limit tournament featuring 16 competitors, after defeating Cassio Werneck, Joe Stevenson, Tyrone Glover and Jason Miller.

[23][24] Rousey started training with Gracie and his brother for her last two competition camps prior to UFC 168: Weidman vs. Silva 2 at the MGM Grand Garden Arena in Las Vegas in December 2013.

[44] Ortega enlisted at the academy at the age of thirteen learning under Gracie throughout his teenage years, and receiving his BJJ black belt and his "T-City" nickname (short for Triangle City) from him.

[51] In 2022 Gracie started training professional boxer and 2021 WBC interim lightweight title holder Ryan Garcia in Brazilian jiu-jitsu.

[52][53][54] In addition Gracie has trained a number of celebrities including Anthony Bourdain,[55] Vince Vaughn who started in 2016[56] and received his purple belt in 2018,[57] Rakaa Iriscience,[58][59] Travis Barker, Prince Jackson, Billy Graziadei and Michael Clarke Duncan.

[65] Gracie has been involved in teaching BJJ to law enforcement for over twenty years and for advocating a nationwide police reform across the United States that would include jiu-jitsu training.

[70] A certification that the Gracie family had been seeking for years,[71] since then the program has started to certify police officers and armed forces personnel.

[83] Gracie presented Quikflip on Episode 23 Season 10 of the reality ABC TV series Shark Tank[84] where it received an offer from investor Lori Greiner of $250,000 in cash and a $250,000 loan, in exchange for 10% equity.

[93] Gracie released a book entitled The 32 Principles: Harnessing the Power of Jiu-Jitsu to Succeed in Business, Relationships and Life with a foreword by Jocko Willink on August 23, 2023.

[98][99] Following catastrophic injuries suffered in 2018 by a jiu-jitsu student rendered quadriplegic, Gracie was called in at the trial to testify as an expert witness for the plaintiff.

[101][102] After leaked footage of the incident was released, Gracie's involvement in the case, his opinion on whether the injury was the result of negligence or not, as well as the compensation payment he received for his testimony, attracted a lot of criticism from the BJJ community.

[105][106] On 14 April 2023, Gracie had a live discussion about the lawsuit with Tom DeBlass, a prominent figure in the BJJ community and one of his most ardent critics.