Mazzarri left Napoli last week and has been swift to find a new job with the Nerrazzuri.
“FC Internazionale would like to announce that the club has appointed Walter Mazzarri as the new head coach,” the club said on their website.
“FC Internazionale would like to thank Andrea Stramaccioni for the great commitment and professionalism he showed in a particularly difficult year. Walter Mazzarri has signed a two-year deal.”