Hennessy
Hennessy was the 3936th most popular name for girls in 2025, given to 37 babies. Its best year was 2019, when it ranked 2239th with 82 babies. Over the last ten years it has moved up 4 places. More babies were named Hennessy in the 2010s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #3,936 girls, down 898 places since 2020
- Babies in 2025
- 37girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 201982 babies
- Total since 1880
- 1,630babies recorded
Hennessy popularity since 1880
A few boys are given the name too: 62 since 1996.
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #3,936 | 37 |
| 2020 | #3,038 | 53 |
| 2010 | #2,568 | 71 |
| 2000 | #3,761 | 34 |
| 1990 | — | — |
| 1980 | — | — |
| 1970 | — | — |
| 1960 | — | — |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Hennessy, counting every spelling?
Hennessy is the most common spelling of a name family that had 37 girls in 2025 across its spellings. Together these spellings went to 37 girls in 2025.
| Spelling | Babies 2025 | Official rank | Babies 2021–2025 |
|---|---|---|---|
| Hennessy | 37 | #3,936 | 253 |
| Hennessey | — | — | 39 |
Spellings count together when they sound the same in American English and are used for the same sex; nicknames and forms that sound different (such as Theo and Theodore) are kept apart. How we group spellings.
How many kids will share the name Hennessy?
37 of the 3,606,400 babies born in the US in 2025 were named Hennessy (0.01 per 1,000 births). For a girl named Hennessy born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 226 (of 430 pupils) would have a child named Hennessy.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Hennessy?
About 1,600 people born in the US named Hennessy are alive today, with a median age of 15; half are between 8 and 21. That makes Hennessy mostly worn by children and young adults.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Hennessy by state
How common Hennessy was among girls born in each state in 2021–2025. It is notably more common than nationally in California (2.3×). In 47 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Hennessy: their share of US girls followed the most similar curve since 1880. If you like Hennessy, they share its era and feel.
Questions about the name Hennessy
How popular is the name Hennessy?
Hennessy was the 3936th most popular name for girls in 2025, given to 37 babies. Its best year was 2019, when it ranked 2239th with 82 babies. Over the last ten years it has moved up 4 places. More babies were named Hennessy in the 2010s than in any other decade.
Is Hennessy a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Hennessy in the US.
Where is Hennessy most popular?
In 2021–2025, Hennessy was most common in California (0.07 per 1,000 girls), followed by Texas and Washington.