Sheikh Ahmed al-Tayeb, the grand imam of Cairo's Al-Azhar, the most prestigious institution in Sunni Islam, will have an audience with the leader of the world's 1.2 billion Catholics at St Peter's, Father Federico Lombardi told AFP.
"This audience is being prepared and has been scheduled for Monday," he said. "It will be a first."
The visit marks the restoration of cordial relations between the two faiths. Ties were soured under Pope Benedict XVI after Francis's now-retired predecessor made a September 2006 speech in which he was perceived to have described Islam as a violent religion.
Relations have steadily improved since Francis became Pope in 2013 with inter-faith dialogue near the top of his agenda, something he underlined with a personal message to the Muslim world to mark the end of the first month of Ramadan of his pontificate.
