Abdoulaye Hamani Diori (29 December 1945 – 25 April 2011) was a Nigerien political leader and businessman.
The son of Niger's first President, he waged a political and abortive military struggle against the Military regime that overthrew his father.
With the return of democracy to Niger, Abdoulaye became head of his father's political party, and maintained a small but influential place in the political life of Niger until his death in 2011.
Abdoulaye was married with four children.
A Muslim, he earned the honorific 'Hadji' after making the pilgrimage to Mecca.
He died 25 April 2011 at National Hospital in Niamey, aged 65, following an illness.