Donn B. Tatum (January 9, 1913 – May 31, 1993) was an American businessman and the first non-Disney family member to be an executive of Walt Disney Productions.

Tatum held senior leadership positions with Disney for 25 years, becoming president from 1968 to 1971, when he became CEO from 1971 until 1980.

He played a major role in the creation of Walt Disney World Resort, EPCOT Center and Tokyo Disneyland.

On June 3, 1980, he retired as chairman and CEO of Disney Productions turning over the company to Card Walker.

[3] He was CalArts board chairman and president of the Disney Foundation, California Broadcasting Assn., United Cerebral Palsy Assn.