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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Felix, Vincent, Maddox, Theodore, Ramsey, Sebastian, Milo, Charlotte, Maeve, Hazel, Naomi, Genevieve, Harmony, Amali

Names like Hennessy:

Hancock, Hannes, Hamako, Hank, Hoang, Huanca, Hung, Huang, Honus, Henning, Hoowanneka, Himeko, Heinz, Hang, Hong, Huong, Honos, Hooang, Hamish, Hanako, Hamza, Honoka, Haines, Honza, Hansa, Hines, Haynes, Hinako, Hans

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