The 19-year-old winger, who has been in the City youth system since joining from the Ajax academy in 2014, has put pen to paper on a long-term deal in the German capital.
"We've had our eye on him for a while," said Hertha sporting director Michael Preetz. "We've been following his development: he's enjoyed an excellent technical and tactical education at Ajax and Man. City, and we're pleased to have beaten other big clubs to his signature."
You never forget your first....day at Hertha! 😉— Hertha Berlin (@HerthaBSC_EN) 3 May 2018
Get a glimpse behind the scenes from earlier as new arrival Javairo #Dilrosun took a look around his new surroundings 🤗
🔵⚪ #hahohe pic.twitter.com/WvUoVDa8Fq
"The club has a lot of young talents that have moved here and had the chance to shine," Dilrosun told the Hertha website. "It's a philosophy that I really like. Pal Dardai told me that I'm a good fit for his system. I'm a winger and a lot of what Hertha do goes through the flanks."
Dilrosun, who turned out for City's U-23 side this term, has made 45 appearances for the Dutch junior international sides at various levels.