The Government Flying Service (GFS) is a department of the Government of the Hong Kong Special Administrative Region employing 225 civil servants responsible for flight operations, maintenance and administration.

One of the major responsibilities of the GFS lies with search and rescue operations. Generally, the area of responsibility is within the 400 nautical mile radius of the Hong Kong Flight Information Region (FIR). Besides serving Hong Kong, the unit also assists in missions originated from the Civil Aviation Department (CAD) and the Maritime Rescue and Coordination Centre (MRCC).