Origen: Irlandés. Today's Irish surnames are underpinned by a multitude of rich histories. The name Hinchey originally appeared in Gaelic as O hAonghusa, which means "descendant of Angus." First found in County Offaly, where they held a family seat from very ancient times. The names Hinchey and Henchy in Ireland are derived from the native Gaelic O'hAonghusa Sept that was located in the West of the country and especially in County Clare. The Sept name is taken from the first name Angus and was often anglicized as Hennessy.

Variantes: Hennessey, Henasey, Henasay, Henchy, Henchey, Henchie, Hinchy, Hinchey, Hinchie, Henesey, Henessy, Henesy, Hennesey y otros.