Mariam Aladji Boni Diallo (born 1952) is a Beninese politician. She was Benin's Minister of Foreign Affairs from 10 April 2006 to 17 June 2007.
She was born in Nikki in 1952 and received an international education.[1] Prior to becoming Foreign Minister, Diallo had been Secretary-General of the Ministry of Foreign Affairs since March 2004.[2] She was a counsellor to the Benin Embassy in Germany. She served as a diplomatic advisor to President Boni Yayi.[1]