Ronald Jean Jumeau (born January 24, 1957) is a Seychellois political figure and diplomat.
He is currently the New York-based roving Ambassador for Climate Change and Small Island Developing State Issues of the Republic of Seychelles since 2012.
Previously, Ambassador Jumeau has held various ministerial positions in the government from 1998 to 2007, and adopted the role of Permanent Representative of the Seychelles to the United Nations and Ambassador to the United States from 2007-2012.
Subsequently, he was an adviser with special press duties at the Ministry of Education from 1991 to 1993, and he was Secretary to the Cabinet in the office of the President of Seychelles and at the same time secretary of four inter-ministerial Cabinet committees from 1994 to 1998; additionally, Jumeau was in charge of the government's relations with the National Assembly from 1995 to 1998.
Jumeau is the AOSIS Island Champion for the United Nations International Year of Small Island Developing States (IYSIDS) representing the AIMS region (Atlantic, Indian Ocean, Mediterranean and South China Sea)