Ahmadu can refer to:
Several leaders of the West African Massina Empire:
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Seku Amadu
Sheikhu Ahmadu (; ; ) (c. 1776 – 20 April 1845) was the Fulbe founder of the Massina Empire (Diina of Hamdullahi) in the Inner Niger Delta, now the Mopti Region of Mali. He ruled as '' Almami'' from 1818 until his death in 1845, also tak ...
(1773–1845), Islamic sheikh and founder of the Massina Empire
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Amadu II of Masina (r. 1845–1852), his son
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Amadu III of Masina (1852–1862), his grandson
Other persons:
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Ahmadu Tall or Ahmadu Seku (1864–1892), the last independent Toucouleur ruler before the arrival of French colonial rule
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Ahmadu Bello, the first Premier of Northern Nigeria
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