Mamane Oumarou is a Niger

Niger

Niger , officially named the Republic of Niger, is a landlocked country in Western Africa, named after the Niger River. It borders Nigeria and Benin to the south, Burkina Faso and Mali to the west, Algeria and Libya to the north and Chad to the east...

ien political figure who served two brief periods as Prime Minister of Niger during the 1980s. He has been Mediator of the Republic

Mediator of the Republic (Niger)

The Mediator of the Republic of Niger is a government appointed position in the West African state of Niger. His or her role is to investigate and mediate national and communal disputes, and to advise the government on solutions....

 since 2008.

A Kanuri from the eastern part of the country, he was Ambassador to Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, then Mayor of Maradi and Minister of Youth, Sports, and Culture under Seyni Kountché

Seyni Kountché

Seyni Kountché was a Nigerien military officer who led a 1974 coup d'état that deposed the government of Niger's first president, Hamani Diori. He ruled the country as military head of state from 1974 to 1987...

. Kountché appointed him as Prime Minister on 24 January 1983, but in November 1983 he instead made Oumarou the head of the National Council for Development, where he served until 1988.

Kountché's successor Ali Saïbou

Ali Saibou

Ali Saibou was the third President of Niger from 1987 to 1993 succeeding the deceased Seyni Kountché.A member of the Djerma people, he was born in Dingajibanda, a village in the Ouallam arrondissement. Although from Kountché's home village, Saibou is not a cousin...

 appointed Oumarou as Prime Minister again in May 1989, but eliminated the position in December 1989.

Oumarou served for a time as Ambassador to Saudi Arabia

Saudi Arabia

The Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...

. He was appointed as Mediator of the Republic by President Mamadou Tandja on 19 August 2008.