The Ruler of Dubai is the position of the hereditary monarch and head of government of the Emirate of Dubai, one of the six ruling families of the UAE. The Ruler is also considered the head of the House of Maktoum, the royal family of Dubai. After the unification of the Emirate of Dubai within the United Arab Emirates, the Ruler of Dubai nominally assumes the position of Vice President and Prime Minister of the United Arab Emirates and sits at the seat reserved for Dubai at the Federal Supreme Council.

The Emirate of Dubai is one of the seven emirates of the United Arab Emirates. It is the most populous emirate of the UAE. The capital of the emirate is the eponymous city, Dubai.