as a Last Name
- 7,887
- people in the U.S. have this name View all people named Hennessey
Meaning & Origins
Nicknames & variations
Quick facts
- Thousands
- of people in the U.S have this name
- 7,887
- to be exact (as of February 2011)
- Massachusetts
- has the most people named Hennessey per capita
Top state populations
U.S. Distribution Map
Top Twitterers with this name
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