Hennessy
- Gender
- Girl
- Say it
- HEN-a-see
- Origin
- Irish
- US rank, 2025
- #3,902 for girls
Hennessy is a girls' name of Irish origin, meaning “descendant of Aonghus (Angus)”. In 2025 it ranked 3,902nd for girls in the US (37 babies).
What does Hennessy mean?
Irish: Irish surname Ó hAonghusa
“descendant of Aonghus (Angus)”
The surname is widely known from the Cognac house founded in 1765 by Irish-born soldier Richard Hennessy.
Is Hennessy a girl's or a boy's name?
Hennessy is a girls' name. In 2025, it was given to 37 girls in the US. Too few boys were given it to be listed.
How popular is Hennessy in the UK?
No girls in the UK were given it in 2025, or too few to be listed. Its busiest year was 2015, with 5 girls.
Hennessy in the UK, year by year
| Year | Girls | Rank |
|---|---|---|
| 2021 | 3 | #5,824 |
| 2020 | 3 | #5,734 |
| 2019 | 0 | – |
| 2018 | 3 | #5,896 |
| 2017 | 0 | – |
| 2016 | 3 | #6,009 |
| 2015 | 5 | #4,294 |
| 2014 | 0 | – |
| 2013 | 0 | – |
| 2012 | 0 | – |
| 2011 | 0 | – |
| 2010 | 0 | – |
| 2009 | 3 | #5,801 |
How popular is Hennessy in the US?
- Rank in 2025
- #3,902among girls
- Babies in 2025
- 37about 1 in 43,000 girls
- Five-year trend
- Fallingdown 43% in five years
- Same name in a class
- under 1%chance among 15 girls
In 2025, 37 girls in the US were named Hennessy, making it the 3,902nd most popular name for girls. Five years earlier, in 2020, it was 3,015th. Its busiest year was 2019, with 82 girls. It first appears in the records in 1991.
2025 had fewer girls named Hennessy than any year since 2000.
Half of all the girls named Hennessy in the US since 1880 were born between 2005 and 2018, the years shaded on the chart below.
Hennessy in the US, year by year
| Year | Girls | Rank |
|---|---|---|
| 2025 | 37 | #3,902 |
| 2024 | 44 | #3,516 |
| 2023 | 39 | #3,831 |
| 2022 | 66 | #2,639 |
| 2021 | 67 | #2,586 |
| 2020 | 53 | #3,015 |
| 2019 | 82 | #2,231 |
| 2018 | 74 | #2,419 |
| 2017 | 45 | #3,435 |
| 2016 | 44 | #3,523 |
| 2015 | 38 | #3,914 |
| 2014 | 49 | #3,270 |
| 2013 | 62 | #2,768 |
| 2012 | 57 | #2,977 |
| 2011 | 62 | #2,795 |
| 2010 | 71 | #2,562 |
| 2009 | 78 | #2,445 |
| 2008 | 70 | #2,630 |
| 2007 | 57 | #3,047 |
| 2006 | 74 | #2,485 |
| 2005 | 62 | #2,700 |
| 2004 | 54 | #2,923 |
| 2003 | 49 | #3,040 |
| 2002 | 39 | #3,457 |
| 2001 | 41 | #3,312 |
| 2000 | 34 | #3,733 |
| 1999 | 29 | #3,966 |
| 1998 | 23 | #4,633 |
| 1997 | 17 | #5,622 |
| 1996 | 13 | #6,718 |
| 1995 | 20 | #4,841 |
| 1994 | 7 | #10,563 |
| 1993 | 6 | #11,773 |
| 1992 | 0 | – |
| 1991 | 5 | #13,139 |
Names like Hennessy
Names given in the same years and the same naming tradition, with a similar sound.
Harper Ivy Lily Avery Felicity Sienna Maeve Amelie Orla Delilah Willow Tilly
Names related to Hennessy
More Irish names
Oscar Rowan Rory Finn Aiden Ryan Nolan Quinn Cody Erin Ronan Connor Declan Casey Kennedy Callan
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and 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, “Hennessy: name meaning, origin and popularity”, https://www.nameling.co.uk/names/hennessy, updated 20 October 2026.