Following extensive talks with Addo and Dortmund, where the former Ghana international works as a trainer scout, the GFA confirmed the news.
With both parties agreeing to a deal, Addo will combine his Black Stars duties with his role at Dortmund.
Addo will be supported by familiar faces.
Former Premier League manager Chris Hughton will be the team's technical advisor, with George Boateng and Mas-Ud Didi Dramani working as assistant coaches.
In March, the coaches were appointed to interim roles, and they ensured that Ghana secured qualification for the 2022 FIFA World Cup at the expense of Nigeria.
The Ministry of Youth and Sports, which is responsible for paying national team coaches, has approved the decision.
Atto Addo was an assistant manager for one of the top club in Germany