Robert Dunkerson Orr (November 17, 1917 – March 10, 2004) was an American politician. He was the 45th Governor of Indiana from 1981 to 1989. He was a member of the Republican Party. He was served as United States Ambassador to Singapore from July 14, 1989 through September 12, 1992.

Orr was born in Ann Arbor, Michigan. He was raised in Evansville, Indiana. He studied at Yale University and at Harvard University. Orr was married to Josie Wallace from 1946 until they divorce in 2000. In 2001, he married Mary Davis. Their marriage lasted until his death in 2004.

Orr died in Indianapolis, Indiana from complications of kidney surgery on March 10, 2004, aged 86.^[1]

• Biography from the Indiana Historical Bureau Archived 2008-03-23 at the Wayback Machine
• Robert D. Orr at Find a Grave
• Biography from the Indianapolis Star Archived 2008-09-25 at the Wayback Machine
• The New York Times: Robert D. Orr, 86, Governor Who Revamped Indiana Schools
• National Governors Association Archived 2012-12-02 at the Wayback Machine

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