The 15 Youngest UFC Fighters to Ever Enter the Octagon

• Debuted at: 22 years, 6 months, 28 days
• Debut Date: UFC 270, 2022

Michael Morales is a 6'0" Welterweight fighting out of Baja California, Mexico. Morales made his UFC debut at UFC 270: N'Gannou vs. Gane in 2022, where he defeated Trevin Giles late in the first round with a finish.

• Debuted at: 23 years, 6 months, 12 days
• Debut Date: UFC Fight Night 2022

Francis Marshall is a 5'9" Featherweight fighting out of New Jersey. His debut fight came against Marcelo Rojo, who he knocked out in the second round.

• Debuted at: 22 years, 4 months, 14 days
• Debut Date: UFC Fight Night 2021

Erin Blanchfield is a 5'4" Flyweight fighting out of New York. She made her professional debut with Invicta, but earned a UFC contract in 2021. She became one of the youngest UFC fighters to ever debut with a unanimous decision win over Miranda Maverick at UFC Fight Night. She boasts an incredible 6-0-0 record in the UFC.

• Debuted at: 22 years, 3 months, 2 days
• Debut Date: UFC Fight Night 2022

Brady Hiestand is a 5'8" Bantamweight who fights out of Spokane Valley, Washington. Hiestand made his debut fight against Ricky Turcios at UFC Fight Night where he lost a split decision, but went on to avenge that loss with a victory against Fernie Garcia.

• Debuted at: 21 years, 3 months, 3 days
• Debut Date: UFC Fight Night 2020

Cory McKenna is a 5'3" Strawweight fighting out of Cwmbran, Wales. She made her UFC debut at UFC Fight night against Kay Hansen, winning by unanimous decision.

• Debuted at: 20 years, 3 months, 1 days
• Debut Date: UFC 245, 2019

Chase Hooper is a 6'1" Lightweight fighting out of Washington, United States. In his four years in the UFC, Hooper has put up an impressive 5-3-0 record. His debut fight came against Daniel Teymur at UFC 245: Usman vs Covington. Hooper would win that fight via ground and pound in the third round.

• Debuted at: 20 years, 2 months, 11 days
• Debut Date: UFC Fight Night 24, 2011

Michael McDonald was a 5'9" Bantamweight who fought out of Modesto, California, and made his UFC debut at an incredible 20 years of age at UFC Fight Night 24 in 2011. He fought in the UFC for five years before taking his talents to Bellator. McDonald has not fought since late 2018.

• Debuted at: 20 years, 2 months, 11 days
• Debut Date: UFC 143: Diaz vs. Condit, 2012

Max Holloway is one of the most legendary fighters to ever grace the UFC, and his first fight at 20-years-old makes him one of the youngest UFC fighters to ever debut. Holloway currently boasts a 25-7-0 after a third round TKO against Chan Sung Jung at UFC Fight Night in 2023. He is slated to fight on the highly anticipated UFC 300 card in April of 2024.

• Debuted at: 20 years, 1 month, 24 days
• Debut Date: UFC 44: Undisputed, 2003

It's impossible to talk about the history of the UFC without mentioning the Diaz brothers. Nick Diaz, the older of the two brothers, made his UFC debut at UFC 44: Undisputed in 2003. He would go on to fight for multiple fighting promotions and finish his professional fighting career with a 26-10-0 record.

• Debuted at: 20 years, 1 month, 20 days
• Debut Date: UFC 37: High Impact, 2002

In the lore of legendary UFC fighters, Robbie Lawler sits near the top of that list. Lawler made his debut at UFC 37 in 2002 at just 20 years of age, making him one of the youngest UFC fighters ever. He recently retired after a round one victory against Niko Price at UFC 290.

• Debuted at: 19 years, 11 months, 23 days
• Debut Date: UFC Fight Night 122, 2017

Yadong Song is a 5'8" Bantamweight fighting out of California, but was born in China, making his UFC debut in 2017 with a first round finish against Bharat Khandare. He is currently slated to fight on the UFC 299 card in March of 2024.

• Debuted at: 19 years, 10 months, 6 days
• Debut Date: UFC 12: Judgement Day, 1997

Vitor Belfort is one of the most legendary mixed martial artists to ever step foot in the octagon. He has been fighting professionally since 1996, and fought as recently as 2023 in a boxing match. His UFC debut came in 1997 at UFC 12 where he actually fought twice on the same card! Two fights in one night sounds absolutely insane but that was the days of UFC old.

• Debuted at: 19 years, 7 months, 2 days
• Debut Date: UFC 192: Cormier vs. Gustafsson, 2015

Sage Northcutt is a 6'0" Welterweight who currently fights in the ONE Fighting Championship promotion. He fought in the UFC from 2015 to 2018 where he complied an impressive 6-2-0 record. His debut in the UFC came against Francisco Trevino, who he defeated with punches early in the first round.

• Debuted at: 18 years, 6 months, 6 days
• Debut Date: UFC 64: Unstoppable, 2006

Dan Lauzon was a 5'10" Welterweight who made his UFC debut at 18 years and 6 months of age, making him the second youngest UFC fighter ever to debut. He fought in the UFC from 2006 to 2010 before moving to other fighting promotions. He has not fought since a second round loss in 2015 to Chip Moraza-Pollard.

• Debuted at: 18 years, 2 months, 2 days
• Debut Date: UFC 282: Blachowicz vs. Ankalaev, 2022

Raul Rosas Jr. is the youngest UFC fighter ever, making his debut at 18 years and 2 months of age at UFC 282. Rosas Jr. was highly touted and despite his young age, he was one of the most hyped prospects in recent memory. He is 2-1-0 in his three UFC fights, with a fight against Ricky Turcios on the book for late February in 2024.