Guilherme Viana
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Porto Alegre, Rio Grande do Sul, Brazil
Light Heavyweight
| Guilherme Viana | |
|---|---|
| Born | May 13, 1986 Porto Alegre, Rio Grande do Sul, Brazil |
| Height | 6 ft 3 in (1.91 m) |
| Weight | 205 lb (93 kg; 14.6 st) |
| Division | Heavyweight Light Heavyweight |
| Reach | 78.0 in (198 cm) |
| Fighting out of | Rio de Janeiro, Brazil |
| Team | Teixeira MMA & Fitness Synergy Fight (formerly)[1] |
| Years active | 2012–2016, 2023-present |
| Mixed martial arts record | |
| Total | 13 |
| Wins | 9 |
| By knockout | 7 |
| By submission | 2 |
| Losses | 4 |
| By knockout | 1 |
| By decision | 3 |
| Other information | |
| Mixed martial arts record from Sherdog | |
Guilherme Viana (born May 13, 1986) is a Brazilian mixed martial artist formerly competing in Bellator's Light Heavyweight division. A professional competitor since 2012, Viana was a contestant on The Ultimate Fighter: Brazil 3. He currently competes as a bare-knuckle boxer in Bare Knuckle Fighting Championship.
Early career
Viana began his professional MMA career in March 2012. He quickly compiled a 4–1 record, with his lone loss being against former UFC and Bellator competitor Rodney Wallace, before appearing on The Ultimate Fighter: Brazil 3.
The Ultimate Fighter: Brazil 3
In February 2014, Viana was revealed as one of the contestants on The Ultimate Fighter: Brazil 3, competing as a heavyweight.[2] In the fight to get into the house, Viana lost to eventual winner of the heavyweight tournament Antônio Carlos Júnior via TKO in the first round, thus being eliminated from the competition.[3]
Bellator MMA
Viana made his Bellator and United States debut against nine-time UFC veteran Francis Carmont at Bellator 135 on March 27, 2015.[4] Viana lost the fight via unanimous decision.[5]
Viana faced another UFC veteran in Houston Alexander at Bellator 146 on November 20, 2015.[6] He won the fight via TKO due to a doctor stoppage following the conclusion of the second round.
Viana then faced Philipe Lins at Bellator 159 on July 22, 2016. After a conservative first round from both fighters, Viana lost the fight via TKO due to punches in the second.[7]
Bare-knuckle boxing career
Viana made his Bare Knuckle Fighting Championship debut against Aleem Whitfield on December 20, 2025 at BKFC Fight Night 33.[8] He won by knockout at the end of the second round.[9]
Viana faced Juan Figuerva on January 17, 2026 at BKFC 86.[10] He won the fight by knockout at the end of the first round.[11]
Viana faced Joseph White on March 28, 2026 at BKFC Fight Night 35.[12] He lost the fight by knockout in the first round.[13]
Personal life
Viana has a brother, who is also a mixed martial artist.[14]