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Curtis Axel
Curtis Axel is the ring name of Joseph Curtis Hennig, an American professional wrestler and third-generation star, son of "Mr. Perfect" Curt Hennig and a former WWE Intercontinental Champion.
Curtis Blaydes
Curtis "Razor" Blaydes (born 1991), American UFC heavyweight, former NJCAA national champion wrestler, holds the UFC heavyweight takedown record, 20-6-0, lost interim title fight to Aspinall at UFC 304.
Curtis Hughes
Curtis Hughes, aka Mr. Hughes or The Big Cat, American professional wrestler born 1964 in Kansas City; bodyguard/enforcer in AWA, WCW, WWF, ECW; later WWA4 head trainer of Apollo Crews, Moose, Heath Slater.
Cus D'Amato
Cus D'Amato (Constantine D'Amato, 1908–1985), American boxing trainer and manager of the Gramercy and Catskill gyms; creator of the peek-a-boo style; trained Floyd Patterson, José Torres, and Mike Tyson.
Cutman
Cutman (cut man, cut person): ringside assistant in boxing and MMA who stops facial bleeding and reduces swelling between rounds using vaseline, coagulants, and an enswell; distinct from cornerman and ringside doctor, licensed by athletic commissions.
Cynthia Calvillo
Cynthia Calvillo, born 1987, is an American retired MMA fighter from San Jose who went 10-6-1 (6-6-1 UFC, 2017-2024) at strawweight and flyweight, beating Jessica Eye, and retired in 2025.
Cynthia Rothrock
Cynthia Rothrock, born 1957, is an American martial artist and actress who starred in Hong Kong martial arts films and later more than 60 American action movies.
D-Generation X
D-Generation X (DX) is a WWE wrestling stable formed in summer 1997 by Shawn Michaels and Triple H, later joined by Chyna, Rick Rude, X-Pac, and the New Age Outlaws; famous for the WCW tank invasion, 2006 and 2009 reunions, and 2019 Hall of Fame induction.
D-Von Dudley
D-Von Dudley (Devon Edger Hughes, born 1972) is an American professional wrestler, half of the Dudley Boyz with Bubba Ray Dudley; 8-time ECW and 8-time WWE World Tag Team Champion, Team 3D in TNA, and a 2018 WWE Hall of Fame inductee.
D'Lo Brown
D'Lo Brown (Accie Julius Connor, born 1970) is an American wrestler and Impact producer, ex-Nation of Domination member, simultaneous European and Intercontinental Champion, known for the 1999 Droz injury and head-shake entrance.
Dada 5000
Dada 5000, real name Dhafir Harris, is a Miami heavyweight MMA fighter and bare-knuckle promoter, founder of BYB Extreme Fighting, star of Dawg Fight, known for the Kimbo Slice rivalry and Bellator 149 cardiac arrest.
Daffney
Daffney (Shannon Claire Spruill, 1975-2021), American wrestler and manager; WCW's screaming 'Scream Queen' and second female WCW Cruiserweight Champion; later TNA, SHINE, CTE advocacy; first female brain studied for CTE in Boston.
Daga (wrestler)
Daga (Miguel Ángel Olivo Castro, born 1988) is a Mexican professional wrestler, AAA Trios Champion and leader of Los Perros del Mal, formerly of Pro Wrestling NOAH, Lucha Underground, MLW, and Impact Wrestling.
Dai Nippon Butokukai
The Dai Nippon Butokukai (大日本武徳会) was a Japanese martial arts organization founded in Kyoto in 1895 that standardized kendo, judo, and kyudo until its dissolution after World War II.
Dakota Kai
Dakota Kai, now wrestling as Charlie, is a New Zealand professional wrestler from Auckland; former WWE Women's and NXT Women's Tag Team Champion, Damage CTRL member, 2021 Dusty Rhodes Classic winner.
Dalton Castle (wrestler)
Dalton Castle, ring name of Brett Giehl (born 1986), American pro wrestler in Ring of Honor and AEW; former ROH World and TV Champion, "Peacock" persona with The Boys, ex-amateur wrestler.
Damage CTRL
Damage CTRL, WWE women's stable formed at SummerSlam 2022 by Bayley with Dakota Kai and IYO SKY, later joined by Asuka and Kairi Sane; held tag and women's titles before disbanding in 2025.
Dambe boxing
Dambe, Hausa traditional boxing from northern Nigeria, Niger, and Chad: one cloth-wrapped "spear" fist, open "shield" hand, kicks allowed, no weight classes, win by knockdown; butchers' guild origins, now a growing online sport.
Damian Knyba
Damian Knyba, "Polish Hussar", is a Polish heavyweight boxer (born 1996, Bydgoszcz), 6'7" with an 86-inch reach, 18-1 with 11 KOs, signed to Top Rank, who stopped journeyman opposition, lost to Agit Kabayel for the WBC interim title, and beat Andy Ruiz Jr by decision in 2026.
Damian Priest
Damian Priest (born Luis Martinez in 1982) is an American professional wrestler on WWE's SmackDown brand, nicknamed the Archer of Infamy, known for winning the 2023 Money in the Bank and the World Heavyweight Championship.
Damien Hooper
Damien Hooper (Super Hooper), Australian Indigenous light heavyweight boxer born 1992 in Toowoomba; 2010 Youth Olympic 75kg gold medalist, 2012 London Olympian, later professional with IBF, WBO, WBC Youth Silver titles.
Damien Touya
Damien Touya (Damien Michel Touya), born 1975 in La Rochelle, French sabre fencer of the Amicale Tarbaise club; three Olympic medals (1996 bronze, 2000 silver, 2004 team gold) and 1999 world champion.
Damon Kemp
Damon Kemp is the ring name of Robert Steveson, an American wrestler who competed in WWE NXT from 2021 to 2024 and is Gable Steveson's older brother.
Dan (段) (rank)
Dan (段) is the senior rank grade in Japanese martial arts, created by Jigoro Kano for judo in the 1880s above the kyu grades; black belt at 1st–5th dan, red-white 6th–8th, red 9th–10th, now standardized by the IJF.
Dan Gable
Dan Gable, American wrestler and coach from Waterloo, Iowa; 1972 Munich Olympic freestyle gold without a point conceded, 181-1 college record, and 15 NCAA team titles coaching Iowa (355-21-5).
Dan Hardy
Dan "The Outlaw" Hardy (born 1982), English welterweight MMA fighter, 25-10 pro, 6-4 UFC; challenged Georges St-Pierre for the UFC welterweight title at UFC 111 in 2010; retired after a 2013 Wolff-Parkinson-White heart diagnosis; later UFC commentator and analyst.
Dan Henderson
Dan Henderson, American retired MMA fighter and two-time Olympic Greco-Roman wrestler (1992, 1996); PRIDE welterweight and middleweight champion simultaneously, Strikeforce light heavyweight champion, UFC 17 tournament winner, retired after UFC 204.
Dan Hooker
Dan Hooker, "The Hangman" (born 1990), New Zealand UFC lightweight from City Kickboxing, Auckland; pro record 24-15 with 12 first-round finishes; former kickboxing champion; faces Brian Ortega in November 2026.
Dan Ige
Dan Ige ("50K", "100 Grand"), born 1991, American UFC featherweight from Xtreme Couture, jiu-jitsu black belt; 19-10 record, 7 KO and 5 submission wins, Contender Series graduate, later bantamweight.
Dan Inosanto
Dan Inosanto (born July 24, 1936), Filipino-American martial artist, Bruce Lee's senior student and only Jeet Kune Do instructorship holder; leads Inosanto Academy, Marina Del Rey; actor in Game of Death.