Liangcheng County (Mongolian: ᠯᠢᠶᠠᠩᠴᠠᠩ ᠰᠢᠶᠠᠨ Liyaŋčaŋ siyan; simplified Chinese: 凉城县; traditional Chinese: 涼城縣; pinyin: Liángchéng Xiàn) is a county of south-central Inner Mongolia, People's Republic of China, bounded by Shanxi province to the south.