Cheong Jun Hoong (Chinese: 張俊虹; pinyin: Zhāng Jùnhóng) AMN (born 16 April 1990) is a retired Malaysian diver.

At the 2014 Asian Games in Incheon, she won a silver medal in 3m synchro springboard with Ng Yan Yee.

Due to her persisting back pain, in October 2016 she withdrew from the 2016 FIN[6] A Diving Grand Prix in Kuching, Sarawak.

Cheong was chosen as one of the flag-bearers for Malaysia at the 2017 Southeast Asian Games alongside two reigning world champions cyclist Azizulhasni Awang and silat exponent Mohd Al-Jufferi Jamari.

On 4 January 2022, Cheong announced her retirement after her contract as a full-time athlete with the National Sports Council and Malaysia Swimming was not renewed.