UFC flyweight Allan Nascimento dies at 34 from apparent heart attack
16 sources • 4 min read • Latest: Aug 4, 2026, 9:12 AM
Last updated Aug 4, 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.
- 4:13 PMNBC News — UFC fighter Allan Nascimento dies at 34 after apparent heart attack in his sleep - NBC News
- 4:13 PMGoogle News — UFC fighter Allan Nascimento dies at 34 after apparent heart attack in his sleep - NBC News
- 9:12 AMYahoo Sports — Allan Nascimento dies at 34 after apparent heart attack, UFC mourns
- 7:19 AMYahoo Sports — UFC’s Allan Nascimento dead aged 34 after apparent heart attack
- 5:50 AMYahoo Sports — Allan Nascimento: UFC fighter dead at 34 after apparent heart attack
- 3:39 AMYahoo Sports — UFC flyweight Allan Nascimento dead at 34
- 12:54 AMThe Guardian Sport — UFC flyweight Allan Nascimento dies aged 34 after apparent heart attack
- 12:47 AMYahoo Sports — UFC Fighter Allan Nascimento Dies at 34 from ‘Apparent Heart Attack’
"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 says Nascimento died in his sleep Brazilian flyweight was 34 years old Last fought in split-decision loss in June UFC fighter Allan Nascimento has been found dead at home at the age of 34, the organisation has announced. The Brazilian flyweight was pronounced dead after suffering an apparent heart attack in his sleep. Continue reading...
Sources
External links- NBC NewsAug 4, 2026, 4:13 PMUFC fighter Allan Nascimento dies at 34 after apparent heart attack in his sleep - NBC News
Brazilian MMA fighter Allan Nascimento died Monday after suffering a heart attack as he slept, the UFC said.
- Google NewsAug 4, 2026, 4:13 PMUFC fighter Allan Nascimento dies at 34 after apparent heart attack in his sleep - NBC News
- Yahoo SportsAug 4, 2026, 9:12 AMAllan Nascimento dies at 34 after apparent heart attack, UFC mourns
The MMA world is mourning the sudden death of Allan Nascimento.
- Yahoo SportsAug 4, 2026, 7:19 AMUFC’s Allan Nascimento dead aged 34 after apparent heart attack
The Brazilian fighter died in his sleep after a suspected heart attack, the UFC said.
- Yahoo SportsAug 4, 2026, 5:50 AMAllan Nascimento: UFC fighter dead at 34 after apparent heart attack
Nascimento had been in the UFC since 2021 and his last fight was a loss to Mitch Raposo in June
- Yahoo SportsAug 4, 2026, 3:39 AMUFC flyweight Allan Nascimento dead at 34
UFC flyweight Allan Nascimento has passed away at 34. The UFC announced Nascimento's death via social media on Monday. The Brazilian suffered an apparent heart attack in his sleep. He was found unresponsive and declared deceased at the scene. "This morning, Monday, August 3rd, our beloved ...
- The Guardian SportAug 4, 2026, 12:54 AMUFC flyweight Allan Nascimento dies aged 34 after apparent heart attack
UFC says Nascimento died in his sleep Brazilian flyweight was 34 years old Last fought in split-decision loss in June UFC fighter Allan Nascimento has been found dead at home at the age of 34, the organisation has announced. The Brazilian flyweight was pronounced dead after suffering an apparent heart attack in his sleep. Continue reading...
- Yahoo SportsAug 4, 2026, 12:47 AMUFC Fighter Allan Nascimento Dies at 34 from ‘Apparent Heart Attack’
The sports star “was found unresponsive after suffering an apparent heart attack in his sleep,” according to the UFC
- ESPNAug 4, 2026, 12:02 AMUFC's Nascimento dies of apparent heart attack
UFC flyweight Allan Nascimento has died of an apparent heart attack, the promotion announced Monday. He was 34.
- Yahoo SportsAug 3, 2026, 11:15 PMUFC fighter Nascimento, 34, dies after heart attack
MMA fighter Allan Nascimento dies at the age of 34, says the sport's leading promotion the UFC.
- BBC SportAug 3, 2026, 11:15 PMUFC's Nascimento, 34, dies after apparent heart attack
MMA fighter Allan Nascimento dies at the age of 34, says the sport's leading promotion the UFC.
- Bleacher ReportAug 3, 2026, 11:07 PMUFC Fighter Allan Nascimento Dies at Age 34 - Bleacher Report
UFC fighter Allan Nascimento has died at the age of 34, the UFC announced Monday.
- 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.
- Fox NewsAug 3, 2026, 10:35 PMUFC fighter Allan Nascimento dead at 34 after apparent heart attack - Fox News
Fighter Allan Nascimento was found unresponsive after apparently suffering a heart attack in his sleep, the UFC said, and was pronounced dead at the scene.
- 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.
- 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 […]
- 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.
- Sky Sports—UFC fighter Nascimento dies aged 34
Mixed martial arts fighter Allan Nascimento has died at age of 34, the UFC has announced.
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