Pascal Irénée Koupaki (born 18 May 1951)[1] is a Beninese politician who served as Prime Minister of Benin from May 2011 to August 2013.

Koupaki worked as an official at the Central Bank of West African States (BCEAO) and the International Monetary Fund (IMF), and he was Director of the Cabinet of the Prime Minister from 1996 to 1998.

Beginning in December 1990, he worked as Deputy Director of the Cabinet of Alassane Ouattara, the Prime Minister of Côte d'Ivoire.

After Ouattara left office, Koupaki took a position at the IMF in September 1994; he then served as Director of the Cabinet of the Prime Minister of Benin, Adrien Houngbedji, from April 1996 to May 1998.

He left the BCEAO when Yayi Boni took office as President of Benin and appointed Koupaki to the government as Minister of Finance in April 2006.