Manuel Antonio Warnes y Durango (1727–1802) was a Spanish military man, who served as regidor and alcalde of Buenos Aires during the Viceroyalty of the Río de la Plata.

[2] Warnes was born in Cartagena (Colombia), the son of Patricio Benito Warnes Geer and Juana María Durango y Atienza, belonging to a family of Irish, Flemish and Spanish origin.

He had arrived in port of Buenos Aires from Cadiz as Master of the French frigate "Amable Maria".

[3] In 1756, he was appointed as alcalde of second vote (vice-mayor) of Buenos Aires, being designated alcalde in first vote in 1775 and 1788.

[4] His great great grandfather was Salomón Warnes (born in Connacht), banished from Ireland for religious reasons, he had settled in Antwerp, at the beginning of the 17th century.