The Durand Line is the boundary between:

The Durand Line is the internationally recognized, albeit disputed, boundary between Pakistan and Afghanistan. Established in 1893 by Sir Mortimer Durand of British India and Abdur Rahman Khan, the Amir of Afghanistan, it was intended to delineate their respective spheres of influence. After the partition of British India in 1947, this line became the border between the newly formed state of Pakistan and Afghanistan. The Durand Line has historically been a source of contention due to its arbitrary division of the Pashtun ethnic group, leading to ongoing political and social complexities in the region.

• The border between India and Pakistan is known as the Line of Control (LoC) in Kashmir and the International Border elsewhere, not the Durand Line.
• The border between Iran and Pakistan is a distinct boundary in the west, characterized by different geographical and historical contexts, and is not referred to as the Durand Line.
• The border between Pakistan and China is located in the northern mountainous regions, primarily along the Karakoram range, and is also separate from the Durand Line.