Surname statistics

Hennessey

There are an estimated 8,357 people with the surname Hennessey worldwide.

U.S. rank #4245 - 8,357 bearers (Census 2010).

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About the surname Hennessey

Hennessey is held by approximately 8,357 people worldwide, ranking #4245 globally. In the United States it ranks #4245 (Census 2010) with 8,357 bearers, or roughly 3 per 100,000 people.

Globally, that prevalence works out to about 1 in 957,281 people. Click any country below to see the full distribution map.

Country distribution

United States8,357

Frequently asked questions

How many people have the surname Hennessey?

Worldwide there are an estimated 8,357 people with the surname Hennessey, which works out to about 1 in 957,281 people globally.

Where is Hennessey most common?

United States: ~8,357.