The 51-year-old stressed he is happy at Stamford Bridge but says he would be open to a move back to the club he won the treble with in 2010 if he ever left England again
The 51-year-old spent two seasons with the Italian club and left in 2010 having won Serie A, the Champions League and the Coppa Italia in his final campaign.
"Right now I'm fine at Chelsea, but in the future Abramovich could decide that my adventure here is over," Mourinho told Mediaset.
"That day I could go back to Italy and it's normal for me to think about Inter. But only Inter, not another Italian club."
Mourinho joined Real Madrid after his spell at San Siro, before returning to Stamford Bridge last summer to takeover from interim coach Rafa Benitez.