Longcheng may refer to:
China Longcheng District, a district of Chaoyang, Liaoning Longcheng Square station, a station of Line 3 of the Shenzhen Metro Longcheng, a former name of Taiyuan, the capital of Shanxi province Longcheng, Tianshui (陇城镇), a town of Qin'an County, Tianshui, Gansu
Laos Long Tieng, a military base, also known as Long Cheng
Mongolia Longcheng, Mongolia, ancient capital of the Xiongnu Empire, also known as Dragon City