The Belgium midfielder follows in the footsteps of Thierry Henry and Cristiano Ronaldo as the only other players to win the award in back-to-back years.
De Bruyne was vital to City’s third Premier League title in four years and a fourth consecutive League Cup triumph.
Dias was crowned the Football Writers’ Association player of the year last month.
Foden capped a superb campaign by being named PFA men’s young player of the year.