The baby name Hennessy appears in baby name data for the United States from 1995 to 2023. It was most popular in 2008 with 52 babies given the name.
Over the period shown, Hennessy has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1995 | 7 |
| 1999 | 6 |
| 2000 | 7 |
| 2001 | 11 |
| 2002 | 5 |
| 2003 | 8 |
| 2004 | 33 |
| 2005 | 23 |
| 2006 | 15 |
| 2007 | 15 |
| 2008 | 52 |
| 2010 | 18 |
| 2011 | 22 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 16 |
| 2019 | 23 |
| 2020 | 8 |
| 2021 | 27 |
| 2022 | 24 |
| 2023 | 9 |