The Real Madrid boss plans to return to English football when he leaves the Bernabeu - but he hopes Fergie will still be in charge at Old Trafford when he does so.
On the possibility of succeeding the Scot, Mourinho told CNN: "No, the perfect scenario when I go there is to coach, because I think football will lose a lot when he stops and there are not young managers and old managers.
"For me, he's the boss. I call him the boss because he's the boss of the coaches and I hope that when I go back to English football he still manages Man United."
‘The Special One’ is sure to be in demand when he does leave Spain – although he admits he’s not sure exactly when that will be.
"I don't think about that [leaving Madrid],” he added. “Especially because I have a four-year contract. I signed it and when I signed it I signed it because I wanted to be in Real Madrid in this period of my career and I don't think in another club.
"I just say openly that for many reasons after this project, the next step will be England, but when? I don't know, I don't have an idea and I am so happy to be in this moment as manager of the best club in the world."
Mourinho also confessed that he hates being in the public eye, and often wishes he could be anonymous.
He said: "If I could be a manager, a football manager, and the moment I leave the club or the moment the match finished, if I could switch off a light and become a person that nobody knows, I would do it.
"I hate my social life. I hate not to be a normal father who goes with his son to the son's football match and being there with the other 20 fathers watching the match.
"I am in a football match of kids 10-12 years old and I have to be there, the people have to come for photos, the people have to come for autographs, the people have to come to insult me, the people have to go behind the goal of my kid and insult my kid of 12 years old.
"I would love to be with my family in the street as a normal person and I can't, so I am a completely different person in my private life."