Adil al-Kalbani (Arabic: عادل الكلباني) is a Saudi Arabian Muslim cleric who served as an Imam of the Great Mosque of Mecca.

[2][3][4] Adil al-Kalbani was born in Riyadh on April 4, 1958 to poor emigrants from Ras Al Khaimah in the United Arab Emirates who came to Saudi Arabia in the 1950s.

Due to his family's financial situation, al-Kalbani took a job with Saudi Arabian Airlines after finishing high school, whilst attending evening classes at King Saud University.

[11] In an interview with the BBC, al-Kalbani declared Twelver Shias as apostates,[12] which triggered a backlash from followers of the sect in Saudi Arabia.

[13] In 2019, however, he retracted his position after reading a book by fellow scholar Hatim al-Awni, stating that he no longer considers as apostates those who "believe in one God, eat our halal meat, and prostrate toward our Qibla direction of Mecca".