President Ahmadinejad will leave Tehran for Niger on the first leg of his visit on April 15.
The Iranian president will visit Ghana on the second leg of his three-day tour, and travel to Benin as the last part of his visit.
The visit comes as Iranian Foreign Minister Ali Akbar Salehi formally invited the new Ghanaian president John Dramani Mahama to pay an official visit to the Islamic Republic during a visit to Accra on January 8.
For his part, Mahama welcomed Iran’s invitation and promised to visit Iran as soon as possible.
He also invited President Ahmadinejad to visit Ghana, expressing hope that the two countries would upgrade their cooperation when their business councils meet in mid-2013.