SHEIKH USAAMAH BIN ABDULLAH BIN ABDUL GANI BIN MUHAMMAD BIN ABDUL GANI BIN IBRAHIM KHAYAAT 
He was born in Makkah. He lives in Makkah and grew up in Makkah. He studied primary, intermediate, secondary and University education in Makkah. He grew up in the custody of his father, his eminence Sheikh Abdullah bin Abdul Gani Khayaat.
He is an Imam of Masjid Al Haram and a member of the Council of Senior Scholars. He memorised the Holy Qur’an under the guidance of his father.
Sheikh Usaamah obtained a bachelor’s degree with distinction and first-class honors in Islamic Law in the Faculty of Sharia and Islamic Studies at Umm Al Quraa University in Makkah in the year 1397AH.
Then a master’s degree in the same College in the year 1402AH. He then got a doctorate degree in the year 1408AH.
He was appointed as an assistant lecturer, then a lecturer in the Department of Islamic Law at the College of Law and Islamic Studies in Umm Al Qurra University in the year 1403AH.
He was then appointed as an Assistant Professor in the Department of Books & Sunnah at the college of Da’awah and Fundamentals of Religion at Umm Qurra University in the year 1409AH.
He was then elected as the Head of Department of the Books & Sunnah at the College of Da’awah for three consecutive semesters.
He was appointed as an Imam in one of the Mosques in the Makkah, thereafter appointed as a teacher at Masjid Al Haram. He was appointed as an Imaam & Khateeb of Masjid Al Haram in the year 1418AH.
He was chosen as a member of the Shura Council in its first session in the year 1414AH. He was also appointed as a member the Muslim World League in Makkah in the year 1418AH.
He also worked as an Assistant Secretary General in the office of the miracles of the Holy Qur’an and Sunnah at the Muslim World League.
Some of the most prominent Scholars he studied under include; his father Sheikh Abdullah Abdul Gani Khayaat, Sheikh Abdul Aziz bin Abdullah Bin Baaz, and Professor Abdul Fatah Barakah
