Roy O. Disney was an American businessman, becoming the partner and co-founder, along with his younger brother Walt Disney, of Walt Disney Productions, since renamed The Walt Disney Company.

While Walt was the creative man, Roy was the one who made sure the company was financially stable. Roy and Walt both founded Disney Studios as brothers, but Walt would buy out most of Roy's share in 1929 so, unlike Max and Dave Fleischer of rival Fleischer Studios, Roy was not a co-producer. However, Roy would be equal partner in all facets of the production company.

Roy became the company's first CEO in 1929, although the official title was not given until 1968. He also shared the role of chairman of the board with Walt from 1945. Walt however dropped the chairman title in 1960 so he could focus more on the creative aspects of the company. After Walt Disney's death in 1966, Roy postponed his retirement to oversee construction of what was then known as Disney World. He later renamed it Walt Disney World as a tribute to his brother. Roy became the president of Walt Disney Productions on December 15, 1966, and remained so until 1968.

He died in December 20, 1971 at age 78, a few months after the Walt Disney World was opened.