Thomas Sidney "Tad" Smith, Jr. (born June 1965)[1] is an American businessman, the former president and chief executive officer of Sotheby's.

Smith graduated with an AB from the Woodrow Wilson School of Public and International Affairs at Princeton University in 1987 after completing a 124-page long senior thesis titled "The Philosophical Transformation of Constitutional Privacy.

[3][4] He later received an MBA from Harvard Business School, where he was a George F. Baker scholar and a Horace W. Goldsmith fellow.

[5] From February 2014 to March 2015, Smith was president and CEO of New York's Madison Square Garden, doubling net profits in the second half of that year.

[6] In March 2015, Sotheby's announced that Smith would succeed William F. Ruprecht as its president and CEO.