Tian Dan 田儋 (died 208 BCE) was one of the regional rulers after the end of the Qin dynasty 秦 (221-206 BCE). He was a descendant of the house of Tian that ruled over the state of Qi 齊 during the late Warring States period 戰國 (5th cent.-221 BCE).
When the rebellions against the Qin dynasty broke out, the rebel leader Chen Sheng 陳勝 dispatched Zhou Shi 周市 to conquer the Shandong peninsula, the ancient territory of Qi. Tian Dan proclaimed himself king of Qi. In 208, the king of Wei 魏, Wei Jiu 魏咎, called for help when the Qin general Zhang Han 章邯 besieged his capital Handan 邯鄲. Tian Dan himself commanded the relief army but was defeated and was killed during battle.