Descendant of Angus; one choice
A modern variant of the Irish surname Hennessy, which is an anglicized form of Ó hAonghusa. It signifies a descendant of Aonghus, a name composed of elements meaning 'one' and 'choice'. While traditionally a surname, it has transitioned into a rare given name in the United States.
Fewer than 5 girls were named Henessy in 2025.
Television personality and sister of Cardi B
US births per 5-year period, 1990–present (SSA data).
