What is the designator for the Middle East Region?

The designation for the Middle East Region is "ME." This abbreviation is commonly used in various contexts to represent the Middle East, which encompasses a diverse array of countries in that geographic area. The use of "ME" effectively captures the region's identity and is recognized across different fields, such as international relations, travel, and logistics.

In contrast, the other options do not correspond to the Middle East. "NC" typically refers to the North Central region in various contexts, such as U.S. geography. "SE" usually denotes the Southeast region, while "PC" does not have a widely recognized connection to any specific geographic area relevant to this question. Thus, "ME" stands out as the correct designation for the Middle East Region.