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Welterweight Division



Kiefer Crosbie

Welterweight Division

10-4-0 (W-L-D)


Wins by Knockout


Wins by Submission


First Round Finishes

Kiefer Crosbie

athlete record


Learn more about Kiefer Crosbie's UFC history, fighter facts, and Q&A below.

Place of Birth
Dublin, Ireland
Trains at
SBG Ireland
Fighting style
Octagon Debut
Sep. 10, 2023
  • Reported 6-5 amateur record
  • Pro since 2016
  • Five wins by KO, two by submission (Triangle, RNC)
  • Has won four of his last seven
  • Five first-round finishes
  • Most recent MMA win was first round stoppage of UFC vet Alex “Cowboy” Oliveira in April 2023
  • Coming off decision win over Aaron Chalmers in exhibition boxing match in July 2023
  • Origin of nickname: “Big Daddy Kief – the name was given to me when I had my first kid by my friends in the boxing gym I used to train in. It was originally a joke, and then it stuck.”

UFC 293 (9/9/23) Crosbie was submitted by Kevin Jousset via rear naked choke at 4:49 of the first round 

When and why did you start training for fighting? I started training martial arts when I was 10 years old. I’m from the inner city of Dublin, which is a rough area, and knowing how to fight as a boy is crucial for self-defense and has saved my life many times throughout my life. Once I had my first kickboxing competition, I was hooked and obsessed ever since.

What ranks and titles have you held? Irish kickboxing titles, world bronze medal in kickboxing, Irish MMA title, RISE MMA world title (beating Alex “Cowboy” Oliveira) 

Do you have any heroes? My mother and my nanny are my heroes. They’ve been through it all and never gave up and are both the hardest workers I’ve ever seen. It’s where I got my work ethic. 

What does it mean for you to fight in the UFC? It’s everything to me; in Ireland before anybody was watching the UFC, I used to watch it on Bravo. I said out loud to family and friends at a very young age that I’ll fight here someday. They laughed and thought I was stupid and that it was impossible. But I’ve never given up on it. It’s been a lifetime of hard work and self-belief.

Did you go to college and if so what degree did you earn? Never finished school or college. I was kicked out when I was 16 and worked full time in a martial arts gym. That’s been my only job, teaching martial arts and competing. 

What was your job before you started fighting? I worked in a pub for one year at 15-16, then just teaching martial arts. 

Specific accomplishments in amateur competition? Irish title 

Ranks in any martial arts styles: Black belt in kickboxing, brown belt in BJJ. 

Favorite grappling technique: Rear naked choke 

Favorite Striking technique: Overhand right / head kick