| R. Barrie Walkley | |
| Office: | United States Special Envoy for the African Great Lakes and the Congo-Kinshasa |
| President: | Barack Obama |
| Term Start: | December 6, 2011 |
| Term End: | July 18, 2013 |
| Successor: | Russ Feingold |
| Office1: | United States Ambassador to South Sudan |
| Status1: | Acting |
| Term Start1: | July 9, 2011 |
| Term End1: | December 6, 2011 |
| President1: | Barack Obama |
| Predecessor1: | Diplomatic relations established |
| Successor1: | Susan D. Page |
| Office2: | United States Ambassador to Gabon |
| Term Start2: | November 12, 2004 |
| Term End2: | April 27, 2007 |
| President2: | George W. Bush |
| Predecessor2: | Kenneth Price Moorfield |
| Successor2: | Eunice Reddick |
| Ambassador From3: | United States |
| Country3: | São Tomé and Príncipe |
| Term Start3: | November 11, 2004 |
| Term End3: | April 27, 2007 |
| Predecessor3: | Kenneth Price Moorfield |
| Successor3: | Eunice Reddick |
| President3: | George W. Bush |
| Ambassador From4: | United States |
| Country4: | Guinea |
| Term Start4: | November 22, 2001 |
| Term End4: | February 10, 2004 |
| President4: | George W. Bush |
| Predecessor4: | Joyce Ellen Leader |
| Successor4: | Jackson McDonald |
| Profession: | Diplomat |
R. Barrie Walkley (born 1944) is a career foreign service officer and the former Special Advisor to Secretary of State Clinton for the Great Lakes and the Democratic Republic of the Congo. He was appointed to this position in December 2011 and served until June 18, 2013, when he was replaced by former U.S. Senator Russ Feingold.[1]
Previously, he served as the American ambassador to Gabon and later to concurrent appointments to Guinea and to Sao Tome and Principe.[2] He was called back to service and appointed Chargé d'Affaires for South Sudan at its independence.[3] (Susan D. Page later became the first ambassador.) He holds degrees from the University of California, Santa Barbara, the University of California, Los Angeles and the University of Southern California. He and his wife Annabelle were Peace Corps volunteers in Somalia (1967–1969).[4]