is a Portuguese professional footballer who plays as a midfielder for Premier League club Manchester United, which he captains, and the Portugal national team.

Fernandes started his career at Italian Serie B side Novara but soon made a move to Serie A side Udinese in 2013, followed by Sampdoria three years later. After five years in Italy, he signed with Sporting CP in 2017. He won back-to-back Taças da Liga in 2018 and 2019, as well as the Taça de Portugal, leading to him being named in the Primeira Liga Team of the Year and Primeira Liga Player of the Year in both seasons. In 2018–19, he scored a record of 33 goals in all competitions, making him the highest-scoring Portuguese midfielder and the highest-scoring midfielder in Europe in a single season.

In January 2020, Fernandes signed with United for an initial €55 million (£47 million), becoming at the time the second-highest fee for a Portuguese player leaving the domestic league. He became a focal player for United, making more than 250 appearances for the club in the next five years. Collectively, he has won the FA Cup and EFL Cup; he also contributed to the club reaching the UEFA Europa League final in 2021, the FA Cup final in 2023, and the Europa League final in 2025. Individually, he was named the FSA Men's Player of the Year Award in 2020 and was the Europa League Top scorer in 2019–20 and 2024–25.

Fernandes is a former Portugal youth international, representing his country at under-19, under-20, under-21 and under-23 levels. He represented Portugal at the 2016 Summer Olympics. He made his senior international debut in 2017, being chosen in Portugal's squads for the FIFA World Cup in 2018 and 2022, the UEFA European Championship in 2020 and 2024, and the 2019 UEFA Nations League Finals, winning the latter competition on home soil while also being named to its Team of the Tournament.