A dual citizen is a citizen of more than one country at the same time, not limited to holding multiple passports at the same time. Possession of dual citizen is forbidden by many nations in the Middle East. Please see the list of countries below
Turkey
Turkey allows dual citizenship.
Saudi Arabia
Dual citizenship forbidden in the Kingdom of Saudi Arabia.
United Arab Emirates
Emirati law does not permit dual citizenship to UAE nationals.
Kuwait
Kuwaiti law bans and forbids dual citizenship.
Qatar
Dual citizenship not allowed in Qatar.
Bahrain
Bahrain does not allow or recognise dual citizenship
Oman
Omani nationality law prohibits dual citizenship.
Iran
Iran does not recognise dual nationality.
Iraq
Dual citizenship allowed in Iraq
Jordan
Dual citizenship allowed in Jordan
Lebanon
Dual citizenship allowed in Lebanon
Syria
Syrian law allows dual citizenship
Yemen
Yemeni law prohibits dual citizenship.