Burke is currently head of original programming for Disney's cable channel Freeform.

Dungey, the first African-American to lead a U.S. broadcast network, will stay through a transition period as Burke assumes her new role.

"I'm excited to tackle new challenges," Dungey said.

Disney is trying to transform itself into a broad-based digital entertainment company as audiences move to Netflix Inc, Alphabet Inc YouTube and other digital options.

Disney is also on the verge of gaining new film and television properties from its purchase of assets from Twenty-First Century Fox Inc for $71.3 billion.

After the completion of the Fox deal, Burke will report to Dana Walden, chairman of Disney Television Studios and ABC Entertainment, the company said.

(Reporting by Munsif Vengattil and Lisa Richwine; Editing by Maju Samuel)