The 31-year-old moved to the French capital for £31m during the summer transfer window, and has repaid Les Parisiens with nine goals in seven games.
However, the club-record signing said that he felt "at home" with the Rossneri and said that he can imagine returning to the San Siro one day.
"I love Milan," said the Swede. "I liked it and I felt at home there. This is a club where I could imagine going back if I had to choose.
"Often, you do not go back to where you were, but Milan, I can imagine. This is a fantastic club.
"I want them to succeed in all competitions. I hope that the club will be better. But if they need help, they know where I am."
The deal for Ibrahimovic pushed PSG's summer spending over £150m.