What is the meaning of the name Hennessy?

The name Hennessy is primarily a gender-neutral name of Irish origin that means One Strength, Energy.

Irish/Scottish surname. It is the anglicized form of the Celtic name, meaning "descendant of Aonghus".

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Ramsey, Sebastian, Maddox, Atticus, Theodore, Declan, Grayson, Hazel, Maeve, Naomi, Soraya, Charlotte, Scarlett, Genevieve

Names like Hennessy:

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