Hennessey
- Gender
- Girl
- Say it
- HEN-a-see
- Origin
- Irish
Hennessey is a girls' name of Irish origin, meaning “descendant of Angus”. Too few babies were given it in the latest year to rank.
What does Hennessey mean?
Irish: Irish surname Ó hAonghusa
“descendant of Angus”
The cognac house Hennessy was founded in 1765 by the Irish-born Richard Hennessy.
Is Hennessey a girl's or a boy's name?
Hennessey is a girls' name.
How popular is Hennessey in the US?
No girls in the US were given it in 2025, or too few to be listed. Its busiest year was 2015, with 27 girls. It first appears in the records in 1992.
Half of all the girls named Hennessey in the US since 1880 were born between 2003 and 2016, the years shaded on the chart below.
Hennessey in the US, year by year
| Year | Girls | Rank |
|---|---|---|
| 2024 | 5 | #15,288 |
| 2023 | 11 | #8,984 |
| 2022 | 9 | #10,377 |
| 2021 | 14 | #7,625 |
| 2020 | 12 | #8,401 |
| 2019 | 11 | #9,106 |
| 2018 | 7 | #12,459 |
| 2017 | 12 | #8,772 |
| 2016 | 15 | #7,599 |
| 2015 | 27 | #4,979 |
| 2014 | 12 | #8,961 |
| 2013 | 12 | #9,031 |
| 2012 | 11 | #9,706 |
| 2011 | 13 | #8,610 |
| 2010 | 13 | #8,697 |
| 2009 | 23 | #5,889 |
| 2008 | 14 | #8,525 |
| 2007 | 13 | #9,003 |
| 2006 | 14 | #8,234 |
| 2005 | 15 | #7,495 |
| 2004 | 19 | #6,211 |
| 2003 | 14 | #7,575 |
| 2002 | 14 | #7,438 |
| 2001 | 16 | #6,614 |
| 2000 | 11 | #8,527 |
| 1999 | 8 | #10,338 |
| 1998 | 17 | #5,794 |
| 1997 | 10 | #8,329 |
| 1996 | 6 | #11,801 |
| 1995 | 0 | – |
| 1994 | 0 | – |
| 1993 | 0 | – |
| 1992 | 5 | #13,308 |
Names like Hennessey
Names given in the same years and the same naming tradition, with a similar sound.
Kennedy, Cassidy, Delainey, Mckenna, Teagan, Ainsley, Finley, Mckinley, Riley, Hadley, Kinley, Harley
Names related to Hennessey
More Irish names
Oscar, Rowan, Rory, Maeve, Finn, Aiden, Ryan, Nolan, Quinn, Orla, Cody, Erin, Ronan, Connor, Declan, Casey
Sources
Figures from Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Hennessey: name meaning, origin and popularity”, https://www.nameling.co.uk/names/hennessey, updated 20 October 2026.