Hancheng (simplified Chinese: 韩城; traditional Chinese: 韓城; pinyin: Hánchéng) is a city in Shaanxi Province, People's Republic of China, about 125 miles northeast of Xi'an, at the point where the south-flowing Yellow River enters the Guanzhong Plain.

In ancient times, Yu the Great bored a tunnel in the nearby Mount Longmen (Dragon Gate Mountain) to alleviate the frequent flooding that occurred in the area, which led to the area being called Dragon Gate (龍門).

During the Spring and Autumn period, the area was under the administration of the State of Jin and became known as Hanyuan (韓原) or "Land of the Hans."

[1] Hancheng has the biggest power plant in western China, generating over 2,400,000 kW.

The famed Chinese historian Sima Qian was born in Hancheng in the Han dynasty and buried nearby.