Choi Hung Estate (Chinese: 彩虹邨; pinyin: Cǎihóng Cūn; Jyutping: coi2 hung4 cyun1, Choi Hung in Cantonese means Rainbow.) is one of the oldest public housing estates in Hong Kong, located in the Wong Tai Sin District of Kowloon. The estate was built by the former Hong Kong Housing Authority (屋宇建設委員會) and is now managed by the current Hong Kong Housing Authority (香港房屋委員會).