The 25-year-old midfielder joins from Aston Villa, having made 213 appearances over the course of eight seasons, scoring 32 goals and assisting 43.
In addition to widespread admiration for his domestic performances, Jack also received plaudits for his impressive individual and team contribution to the England squad, as the national team reached the final of the Euro 2020 competition in a truly memorable summer for fans all over the country.
“I am incredibly happy to have joined Manchester City,” Grealish said. “City are the best team in the country with a manager considered to be the best in the world – it’s a dream come true to be part of this club.
“Over the past 10 seasons, they have won major trophies consistently. Pep coming here has taken them to the next level and the football this team plays is the most exciting in Europe. To play for Pep and learn from him is going to be special and it’s something any top footballer would want.
“The facilities are amazing, and I honestly can’t wait to get started, meet everyone and get playing.”
Director of Football Txiki Begiristain added: “We are absolutely delighted to be able to welcome Jack Grealish to Manchester City. He is an incredible talent.
“Jack’s development over the past few seasons both for club and country has been plain for everybody to see. His natural talent together with his commitment to improve as a player, has seen him become one of the most exciting attacking players in world football today.
“I am certain that the fans are going to love seeing him in our team. Pep loves the way he plays, and we all feel he is an ideal fit for Manchester City. Our style and his style are a perfect match. I’m excited to watch him over the coming years.”
Everyone at Manchester City is delighted Jack has joined us and we all wish him the very best during his time here.”