Hennessy
GirlEnglish
Hennessy is a girl name of English origin meaning "descendant of the youthful one".
About this name
Gender
Girl
Language
English
Religion
None
Popularity
88 / 100
Syllables
3
Length
8 letters
Meaning
descendant of the youthful one
Etymology
Hennessy is an anglicized form of the Gaelic surname 'Ó hAnracháin' or 'Ó hAnrachtaigh', meaning 'descendant of Anrachán' or 'Anrachtach', with Anrachán/Anrachtach likely derived from 'anrach', meaning 'youthful' or 'young one'; of Irish origin
Frequently Asked Questions About Hennessy
What does the name Hennessy mean?
Hennessy means "descendant of the youthful one", and is of English origin.
What is the origin of the name Hennessy?
Hennessy originates from English, commonly used in Europe.
Is Hennessy a boy or girl name?
Hennessy is typically used as a girl name.
What religion is the name Hennessy associated with?
Hennessy is associated with None.
Last updated: June 2026