Terry was banned for four games and fined £220,000 by the FA after being found guilty of racially abusing QPR's Anton Ferdinand in a Premier League fixture in October 2011.
Having worked intimately with Terry between 2004 and 2007, Mourinho is adamant that despite the FA's verdict the Chelsea captain is not a racist.
However, Mourinho does concede that saying "f****** black c***" in a heated conversation with Ferdinand was worthy of punishment. Terry admits using the words but only in the context of asking Ferdinand if he thought Terry had said them to him.
"He is not a racist," Mourinho told CNN. "That's 100 per cent. Chelsea had a squad where we had 12 African players in the squad. It was a fantastic squad and he had always a great relation with every one of them.
"But in football it can happen, and I know it can happen, that during a football match - because sometimes it's more than a game - sometimes you have reactions that don't represent what you are really.
"Probably, he had a racist comment or a 'racist' attitude against an opponent and, sometimes in football, we look to our opponents in the wrong way. But to pay, he has to be punished.
"But please, don't say that he is a racist, because I know what I am saying. Didier Drogba will say, Geremi will say, Claude Makelele will say, all of them will say that he is not a racist."