Dubai, also spelled Dubayy, city and capital of the emirate of Dubai, one of the wealthiest of the seven emirates that constitute the federation of the United Arab Emirates, which was created in 1971 following independence from Great Britain. There are several theories about the origin of the name Dubai. One associates it with the daba—a type of locust that infests the area—while another holds that it refers to a market that existed near the city.