The governor of Gibraltar is the representative of the British monarch in the British overseas territory of Gibraltar. The governor is appointed by the monarch on the advice of the British government. The role of the governor is to act as the de facto head of state. They are responsible for formally appointing the chief minister of Gibraltar, along with other members of the government of Gibraltar after a general election. The governor serves as commander-in-chief of Gibraltar's military forces and has sole responsibility for defence and security. Although recent appointments have all been former military personnel, most being former Royal Navy or Royal Marines flag officers, Sir James Dutton resigned from the role in 2015, complaining that it was "more representational and ceremonial than I had expected".

Gibraltar is a British Overseas Territory and city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the Atlantic Ocean. It has an area of 6.7 km2 (2.6 sq mi) and is bordered to the north by Spain. The landscape is dominated by the Rock of Gibraltar, at the foot of which is a densely populated town area, home to some 32,688 people, primarily Gibraltarians.