The Switzerland international moves to the Nerazzurri on-loan for the season.
Akanji made 40 appearances in all competitions for City in 2024-25.
The defender completed his medical and penned terms with Inter this morning.
With the City he made 136 appearances in three years, scoring 5 goals and winning two Premier Leagues, one English Cup, a Community Shield, a Champions League, a UEFA Super Cup and the Club World Cup in 2023.