French economist Laurence Boone, a former adviser to President Francois Hollande and currently chief economist at insurer AXA, will replace US national Catherine Mann as the OECD's chief economist.
Boone helped craft France's position during the Greek debt crisis since 2014 when she joined Hollande's office.
She previously worked as the chief European Economist of Bank of America Merrill Lynch.
She will take her position in July, the Paris-based policy forum said today.
"Her leadership of the OECD's economic team will be a vital part of our effort to rebuild the multilateral system for a new age," OECD head Angel Gurria said in a statement.
The Organisation for Economic Cooperation and Development, which was founded in 1948 to manage the Marshall Plan to rebuild Europe after World War Two, produces policy recommendations and economic forecasts for its 35, mostly-rich member countries.
