代尔祖尔省
Deir ez-Zor (; Syriac: ܕܝܪܐ ܙܥܘܪܬܐ, "Dayrāʾ Zəʿōrtāʾ") is the largest city in eastern Syria and the seventh largest in the country. Located to the northeast of the capital Damascus on the banks of the Euphrates River, Deir ez-Zor is the capital of the Deir ez-Zor Governorate. In the 2018 census, it had a population of 2,718,000 people.