Adrian D. Smith is an American architect. He designed the world's tallest structure, Burj Khalifa, as well as the building projected to surpass it, the Jeddah Tower. A long-time principal of Skidmore, Owings & Merrill, he founded his own architectural partnership firm Adrian Smith + Gordon Gill Architecture in Chicago in 2006. Among his other projects, he was the senior architect for Central Park Tower in New York City, Trump International Hotel & Tower in Chicago, the Jin Mao Tower in Shanghai, and Zifeng Tower in Nanjing.

The Burj Khalifa is a skyscraper in Dubai, United Arab Emirates. It is the world's tallest structure. With a total height of 829.8 m and a roof height of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, surpassing Taipei 101, the previous holder of that status.