Public housing in Hong Kong is a set of mass housing programmes through which the Government of Hong Kong provides affordable housing for lower-income residents. It is a major component of housing in Hong Kong, with nearly half of the population now residing in some form of public housing. The public housing policy dates to 1954, after a fire in Shek Kip Mei destroyed thousands of shanty homes end of 1953 and prompted the government to begin constructing homes for the poor.
Public housing is mainly built by the Hong Kong Housing Authority and the Hong Kong Housing Society. Rents and prices are significantly lower than those for private housing and are heavily subsidised by the government, with revenues partially recovered from sources such as rents and charges collected from car parks and shops within or near the residences.
Many public housing estates are built in the new towns of the New Territories, but urban expansion has left some older estates deep in central urban areas. They are found in every district of Hong Kong except in Wan Chai District. The vast majority of public housing is providing in high-rise buildings, and recent blocks usually comprise 40 or more storeys.
On 25 December 1953, a major fire in Shek Kip Mei destroyed the makeshift homes of refugees from Mainland China, leaving more than 50,000 people homeless. After the fire, and facing a surge of immigrant population, then governor Alexander Grantham launched a public housing program to introduce the idea of "multi-storey building" for the immigrant population living there, thus commencing a programme of mass public housing, providing affordable homes for those on low incomes. Some scholars have argued that the government has been overstating the role of the fire in the history of public housing in Hong Kong. For example, Faure argues that Grantham was concerned with introducing subsidised housing as early as 1949, but encountered opposition from Chinese members of the Legislative Council.