The German-born of Ghanaian descent has sealed a loan switch to the Bundesliga II outfit ahead of the 2022/23 season.
English Championship side Watford FC have loaned out youngster Kwadwo Baah to German second-tier outfit Fortuna Dusseldorf until the end of the season.
The 19-year-old has joined the Red and White lads on a season-long loan deal with an option for a permanent move from Watford in the ongoing summer transfer window.
The German-born forward, who joined Watford from Rochdale in May last year, told the club website: "I'm really looking forward to it and I'm grateful to have the opportunity to play for such a big club in Germany as Fortuna Düsseldorf.
“It's going to be a great experience for me and above all I can't wait to see the fans here in the stadium.
“I'm a player who looks for one-on-one situations and has the pace - that's how I want to help the team."
Dusseldorf sporting director Christian Weber said: “With Kwadwo Baah, we're getting a player with potential for development who already has a lot to offer and who fits our requirement profile perfectly with his pace and physique.
“In England he showed his talent from a very young age. The fact that he's regularly part of the German U19 national team underscores his abilities."