Mario Fernandes
- Full name: Mário Figueiredo Fernandes
- Date of birth: September 19, 1990
- Place of birth: São Paulo, Brazil
- Nationality: Brazilian by birth; acquired Russian citizenship in 2016 and represents the Russia national team
- Position: Right-back / Right wing-back
- Club career (highlights):
- Early career in Brazil with Grêmio (youth and senior team debut)
- Joined PFC CSKA Moscow in 2012 — became a key defender and attacking full-back for CSKA
- Won multiple Russian Premier League titles, Russian Cups and Super Cups with CSKA Moscow
- In 2022 he left CSKA Moscow and later returned to Brazil to play for Grêmio again (note: club movements after 2022 may need updating)
- International career:
- After gaining Russian citizenship in 2016, he was called up to the Russia national team.
- Represented Russia at UEFA Euro 2016 and the 2018 FIFA World Cup (hosted by Russia), where he featured as a starter on the right flank.
- Style of play: Physically strong and athletic right-back known for defensive solidity, overlapping runs, crossing ability and contributing to attack from wide areas.
- Notable facts:
- Became one of the high-profile examples of naturalized players to represent Russia in major tournaments.
- Despite Brazilian origin, he integrated into Russian football and culture during his long spell at CSKA Moscow.
Sources / last update note: Information summarized from public records up to 2024; club status and transfers after 2024 may not be included.