Robert Louis Barry (August 28, 1934 – March 11, 2024) was an American ambassador and diplomat.

[1] Robert Louis Barry was born in Pittsburgh, Pennsylvania, on August 28, 1934.

[2] A member of Dartmouth College's Class of 1956, he was his class' 50th-year reunion honorary degree recipient, receiving a Doctor of Laws at the College's 236th Commencement Exercises on June 11, 2006.

Following retirement he was the Head of Mission for the Organization for Security and Cooperation in Europe in Bosnia and Herzegovina from 1998 to 2001.

[1] Barry died from vascular dementia at his home in Newton, Massachusetts, on March 11, 2024, at the age of 89.