The Development Bureau (DEVB; Chinese: 發展局) is a policy bureau of the Government of Hong Kong responsible for urban planning and renewal, land administration, infrastructure development, building safety, landscape, greening & tree development, water supplies, flood prevention and heritage conservation.

The Bureau is supervised by the Secretary for Development.

The Development Bureau of Hong Kong was created on 1 July 2007 as part of a governmental reorganisation introduced under Donald Tsang.

Responsibility for urban planning, environmental protection, and lands administration originally fell under the Planning, Environment and Lands Bureau when the Hong Kong SAR government was established in 1997.

Beginning 1 January 2000, the responsibility for environmental protection was transferred to the Environment and Food Bureau; the Planning, Environment and Lands Bureau was renamed Planning and Lands Bureau.

When the Principal Officials Accountability System went into effect on 1 July 2002, the Housing Bureau and Planning and Lands Bureau were combined into the Housing, Planning and Lands Bureau.

In 2007, the Development Bureau was established and took over the responsibility of planning and lands administration from the Housing, Planning and Lands Bureau, public works from the Environment, Transportation and Works Bureau, and heritage conservation from Home Affairs Bureau.

In July 2023, it was revealed that the Development Bureau was considering direct land grants, rather than open tenders, for the San Tin Technopole.