Manchester United’s upturn in form in the second half of the season that saw them secure a place in the Premier League top four and reach the semi-finals of both the FA Cup and the Europa League can largely be attributed to the impact of Fernandes, who joined the club from Sporting Lisbon in January.
Fernandes made 22 appearances in all competitions for the Red Devils and scored 12 goals.
He was named the Premier League’s player of the month in February.
The 26-year-old topped the poll voted for by Manchester United fans ahead of Anthony Martial and Marcus Rashford.
Fernandes told the club's official website: “Of course you want to win some trophies for the team, for the club and for the fans, but obviously, I’m happy with the individual trophies.
"I know you can say: 'Oh, I don’t care' and everything, but it’s always important for a player. You always feel good when you win these kinds of awards, and I am no different.
"I am really happy. I want to add this to so many trophies for the club and for the fans because I think they deserve [it]."
Fernandes succeeds Luke Shaw, who won the award last year.
Manchester United begin their season at home to Crystal Palace on Saturday.