Zhong Acheng (simplified Chinese: 钟阿城; traditional Chinese: 鍾阿城; pinyin: Zhōng Āchéng; born 1949), often known by his pseudonym Ah Cheng, is a Chinese author and screenwriter.
In 1979, together with He Dong, Ma Desheng, Wang Keping, Huang Rui, Li Shuang, Qu Leilei and Ai Weiwei, Ah Cheng founded the Stars Group (XingXing), an assembly of untrained, experimental artists who challenged the strict tenets of Chinese politics. As a political and artistic group, they staged exhibitions around Beijing, making way for avant-garde art in China.