Long Wall

Long walls were ancient Greek defensive structures between cities and ports, especially the Long Walls linking Athens to Piraeus and Phalerum.

The Long Wall may also refer to:
 * Anastasian Wall
 * Long Wall on the Thracian Chersonese
 * Long Wall of China, more commonly known as the Great Wall
 * Long Wall of Korea, either of two great walls between Korea and China
 * Long Wall of Vietnam, between northern and southern Vietnam