Choi Wan Estate (Chinese: 彩雲邨) is a public housing estate in Ngau Chi Wan, Wong Tai Sin District, Kowloon, Hong Kong, located between Ngau Chi Wan Village and Jordan Valley and the foot of Fei Ngo Shan. The estate is divided into Choi Wan (I) Estate (彩雲(一)邨) and Choi Wan (II) Estate (彩雲(二)邨), and has a total of 21 blocks. It is one of the largest public housing estates in Wong Tai Sin District.
Choi Wan Estate was the site of Ngau Chi Wan Village. Its name Choi Wan fits its geographical position because "Wan" (i.e. Choi Wan Estate, "Wan" means cloud in Cantonese) is above "Hung" (i.e. Choi Hung Estate, "Hung" means rainbow in Cantonese). The estate started construction in 1976 and finished in 1979.
Choi Wan Estate is one of the few public housing estates in Hong Kong which blocks are not named with character in the estate name (i.e. "Choi" or "Wan"). Instead, the blocks are named based on the Chinese astronomical matters, for instance, Ngan Ho House (銀河樓, lit. galaxy house) and Koon Yat House (觀日樓, "Koon Yat" meaning "viewing the sun"). The estate is also the namesake for the northwestern Pacific Oceantropical cyclone name Choi-wan.