British Forces Overseas Hong Kong comprised the elements of the British Army, Royal Navy and Royal Air Force stationed in British Hong Kong. The Governor of Hong Kong also assumed the position of the commander-in-chief of the forces and the Commander British Forces in Hong Kong took charge of the daily deployment of the troops. Much of the British military left prior to the handover of Hong Kong to China in 1997. The present article focuses mainly on the British garrison in Hong Kong in the post Second World War era. For more information concerning the British garrison during the Second World War and earlier, see the Battle of Hong Kong.

The governor of Hong Kong was the representative of the British Crown in Hong Kong from 1843 to 1997. In this capacity, the governor was president of the Executive Council and commander-in-chief of the British Forces Overseas Hong Kong. The governor's roles were defined in the Hong Kong Letters Patent and Royal Instructions. Upon the end of British rule and the handover of Hong Kong to China in 1997, most of the civil functions of this office went to the chief executive of Hong Kong, and military functions went to the commander of the People's Liberation Army Hong Kong Garrison.