Chung Cheng High School (Yishun) (CCHY) is a co-educational government-aided secondary school in Yishun, Singapore. It is an affiliated school and a former branch school of Chung Cheng High School (Main).

Yishun, formerly known as Nee Soon, is a residential town located in the northeastern corner of the North Region of Singapore, bordering Simpang and Sembawang to the north, Mandai to the west, the Central Water Catchment to its southwest, Ang Mo Kio to its south, as well as Seletar and Sengkang to its east and southeast respectively.