"I am very happy to be at one of the most important clubs in the world," he told the press. "I've always dreamed of being coached by [Jose] Mourinho and to play with [Zlatan] Ibrahimovic.
"I've seen him play and I'm happy to have him as a team-mate and not as an opponent."
Lucio is Inter's third major new signing so far, after bringing in former Genoa stars Thiago Motta and Diego Milito.
The 31-year-old will bring a wealth of experience to the club, having been a part of the Brazilian national team since 2000, and spending eight years in the German Bundesliga, first for Bayer Leverkusen, and later for Bayern Munich.
Danilo Pochini, Goal.com