Ali Mahamane Lamine Zeine (born 1965) is a Nigerien politician and economist who has served as the prime minister of Niger since 2023.

[1] Ali Lamine Zeine was born in 1965 in Zinder and graduated from the Centre for Financial, Economic and Banking Studies in Marseille and Paris-I.

[2] After serving as Director of the Cabinet of President Mamadou Tandja,[3] Zeine was appointed to the government as Minister of the Economy and Finance on 24 October 2003.

[4] In 2009, a newspaper editor, Boussada Ben Ali, alleged that Zeine had stolen money that was part of an oil contract between Niger and China.

[6] According to one of the junta leaders, Colonel Djibrilla Hima Hamidou, the ministers "still under surveillance" had held "very sensitive portfolios" and therefore it was necessary "to ensure their security".