Miguel Duffy (1845–1925) was an Argentine landowner, merchant and politician, who served for several periods as Intendant of Carmen de Areco, in the Buenos Aires province.

He was married in the Parish Nuestra Señora del Carmen de Areco to Francisca de Magallanes, daughter of Saturnino Magallanes and María Josefa Sierra, belonging to an old family of the town of Areco.

[2] He and his wife were the parents of several children, including Eduardo Duffy, a distinguished rancher and politician who served for several terms as congressman of Córdoba.

[4] Duffy was appointed for the first time to occupy the position of mayor of the town of Areco in 1874, being replaced by Baldomero Lamela.

[5] In 1900, Miguel Duffy founded the town of Wheelwright in General López, Santa Fe Province.