UFC flyweight Allan Nascimento dies at 34 from apparent heart attack
6 sources • 3 min read • Latest: Aug 3, 2026, 10:41 PM
Last updated Aug 3, 2026

UFC flyweight Allan Nascimento was found dead on August 3, 2026, from an apparent heart attack while asleep. Nascimento, 34, was discovered unresponsive by medical responders and was pronounced dead at the scene. Throughout his MMA career, which began in 2011, he amassed a record of 22 wins and 7 losses, competing in organizations like RIZIN and Legacy FC before joining the UFC in 2021. His last fight took place in June, where he suffered a split decision loss to Mitch Raposo. The UFC released a statement expressing condolences to Nascimento's family and friends during this difficult time.
- •Allan Nascimento found dead on August 3, 2026.
- •Died from an apparent heart attack in his sleep.
- •Nascimiento had a career record of 22-7.
- •He joined the UFC in late 2021 and fought six times.
- •His last fight was a split decision loss in June.
- 10:41 PMCBS Sports — Allan Nascimento dead at 34: UFC flyweight found unresponsive after apparent heart attack
- 10:35 PMYahoo Sports — UFC's Allan Nascimento dies of apparent heart attack at 34
- 9:58 PMYahoo Sports — UFC Flyweight contender Allan Nascimento dead at 34
- 9:58 PMYahoo Sports — UFC fighter Allan Nascimento, 34, found dead of apparent heart attack
- 9:54 PMMMA Fighting — UFC flyweight Allan Nascimento dead at 34
- 9:53 PMYahoo Sports — UFC announces flyweight Allan Nascimento dead at 34
"LAS VEGAS, NEVADA - JANUARY 14: Allan Nascimento of Brazil prepares to fight Carlos Hernandez in a flyweight fight during the UFC Fight Night event at UFC APEX on January 14, 2023 in Las Vegas, Nevada. (Photo by Chris Unger/Zuffa LLC via Getty Images) | Zuffa LLC via Getty Images UFC flyweight Allan Nascimento has died at age 34. On Monday, the UFC announced that Nascimento was found unresponsive after suffering an apparent heart attack in his sleep. The responding medical team pronounced him dead at the scene. This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep. Despite the efforts of the responding medical team, he was pronounced deceased at the scene. Our thoughts and deepest… pic.twitter.com/vlaBaBOyJr — UFC (@ufc) August 3, 2026 This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep. Despite the efforts of the responding medical team, he was pronounced deceased at the scene. Our thoughts and deepest condolences are with Allan’s family, friends, teammates, and loved ones during this incredibly difficult time. An MMA professional since 2011, Nascimento was a one-time contestant on Contender Series, where he lost a split decision to Raulian Paiva in 2018. Despite the loss, Nascimento still managed to make his way to the UFC, where he fought six times, going 4-2 in the octagon and earning two Performance of the Night bonuses. Most recently, Nascimento lost a split decision to Mitch Raposo at UFC Vegas 119 in June.
"Ultimate Fighting Championship (UFC) Flyweight contender Allan Nascimento has died at the age of 34. UFC announced the heartbreaking news today (Mon., Aug. 3, 2026) on social media, revealing that Nascimento was found unresponsive after suffering an apparent heart attack in his sleep. “This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was […]
"UFC fighter Allan Nascimento of Brazil was found unresponsive Monday Aug. 3 after dying of an apparent heart attack, according to the UFC.
Sources
External links- CBS SportsAug 3, 2026, 10:41 PMAllan Nascimento dead at 34: UFC flyweight found unresponsive after apparent heart attack
The veteran fighter posted a 4-2 record inside the UFC Octagon
- Yahoo SportsAug 3, 2026, 10:35 PMUFC's Allan Nascimento dies of apparent heart attack at 34
UFC fighter Allan Nascimento of Brazil was found unresponsive Monday Aug. 3 after dying of an apparent heart attack, according to the UFC.
- Yahoo SportsAug 3, 2026, 9:58 PMUFC Flyweight contender Allan Nascimento dead at 34
Ultimate Fighting Championship (UFC) Flyweight contender Allan Nascimento has died at the age of 34. UFC announced the heartbreaking news today (Mon., Aug. 3, 2026) on social media, revealing that Nascimento was found unresponsive after suffering an apparent heart attack in his sleep. “This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was […]
- Yahoo SportsAug 3, 2026, 9:58 PMUFC fighter Allan Nascimento, 34, found dead of apparent heart attack
The 34-year-old flyweight was “found unresponsive after suffering an apparent heart attack in his sleep,” per the UFC.
- MMA FightingAug 3, 2026, 9:54 PMUFC flyweight Allan Nascimento dead at 34
LAS VEGAS, NEVADA - JANUARY 14: Allan Nascimento of Brazil prepares to fight Carlos Hernandez in a flyweight fight during the UFC Fight Night event at UFC APEX on January 14, 2023 in Las Vegas, Nevada. (Photo by Chris Unger/Zuffa LLC via Getty Images) | Zuffa LLC via Getty Images UFC flyweight Allan Nascimento has died at age 34. On Monday, the UFC announced that Nascimento was found unresponsive after suffering an apparent heart attack in his sleep. The responding medical team pronounced him dead at the scene. This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep. Despite the efforts of the responding medical team, he was pronounced deceased at the scene. Our thoughts and deepest… pic.twitter.com/vlaBaBOyJr — UFC (@ufc) August 3, 2026 This morning, Monday, August 3rd, our beloved flyweight fighter, Allan Nascimento, was found unresponsive after suffering an apparent heart attack in his sleep. Despite the efforts of the responding medical team, he was pronounced deceased at the scene. Our thoughts and deepest condolences are with Allan’s family, friends, teammates, and loved ones during this incredibly difficult time. An MMA professional since 2011, Nascimento was a one-time contestant on Contender Series, where he lost a split decision to Raulian Paiva in 2018. Despite the loss, Nascimento still managed to make his way to the UFC, where he fought six times, going 4-2 in the octagon and earning two Performance of the Night bonuses. Most recently, Nascimento lost a split decision to Mitch Raposo at UFC Vegas 119 in June.
- Yahoo SportsAug 3, 2026, 9:53 PMUFC announces flyweight Allan Nascimento dead at 34
The UFC announced the tragic news Monday of Allan Nascimento's sudden death at the age of 34.
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