US Popularity Rank: 6710

Origin: Gaelic

Meaning: Descendant of Angus

Hennessy is a masculine name of Irish origin. Originally a surname, it hailed from the Gaelic O’hAonghusa and means “descendant of Angus.” Offering a regal aura, it can be traced back to Ancient Ireland, where the name was borne by families in the Kingdom of Uí Failghe. It can be found more commonly as a surname, allowing your little shining star to stand out from the crowd. It has been borne by numerous Irish athletes, singers, and artists, making space for baby to add their name to the list.