The 34-year-old has signed a one-year deal (with the option of a second season) with Antonio Conte’s side.
Inter will pay €1m plus €500,000 in bonuses while Kolarov will earn an annual salary of €3.5m plus add-ons.
🚨 | ANNUNCIO
Aleksandar #Kolarov è un nuovo giocatore dell'Inter! ⚫️🔵
— Inter (@Inter) September 8, 2020
Kolarov arrived in Italy with Roma in 2017 and went on to make 132 appearances, clocking up 20 assists.
The former Manchester City player is Inter’s second wing-back signing of the summer.
Earlier in the window, the Nerazzurri splashed out €40m to sign Achraf Hakimi from Real Madrid.