Speaking on board a flight back to Rome, the Pope said that he understood the harm caused by the stereotype that linked Islam with terrorism.
He said a “global condemnation” of the violence would help the majority of Muslims dispel this stereotype.
Pope Francis was returning from a three-day visit to Turkey, where he discussed divisions between faiths.
The pontiff denounced people who say that “all Muslims are terrorists”.
“As we cannot say that all Christians are fundamentalists,” he said.