About Hennessey
The surname Hennessey is of Irish origin and is derived from the Gaelic name Ó hAonghusa, meaning "descendant of Aonghus." Aonghus is a Gaelic personal name derived from the elements "aon," meaning "one," and "gus," meaning "choice" or "vigor." The name Hennessey is predominantly found in Ireland and is associated with County Clare.
The surname Hennessey is a unique entry in our records. Discover more about its distribution and characteristics:
Below is the ethnic distribution of the surname Hennessey based on recent US Census records. This is a brief glimpse into the diverse backgrounds of people carrying this surname.
Ranking information for the surname Hennessey is not currently available.
Here's how to represent Hennessey in Braille, each pattern of raised dots corresponds to a letter in the name.
The image below shows how you can spell Hennessey using American Sign Language (ASL). In sign language, each hand shape corresponds to a specific a letter of the name.