Mark A. Tatum is an American sports and business executive who is currently serving as the Deputy Commissioner of the National Basketball Association (NBA) under Adam Silver. Additionally, Tatum also currently holds the position of the NBA's chief operating officer. For his work in these capacities, Forbes ranked him at No. 8 on its list of "Most Influential Minorities in Sports". He is of Vietnamese and Jamaican descent.
On February 1, 2014, Tatum was unanimously appointed Deputy Commissioner and chief operating officer by the NBA Board of Governors.
As Adam Silver's deputy commissioner, Tatum also holds the duty of announcing second-round picks in the annual NBA draft, as well as hosting the NBA draft lottery. He is also the league's representative in the FIBA Central Board.
