Total babies named Hennessy (all years): 1,593
| Year | Girls (count / rank / %) |
|---|---|
| 2024 | 44 / #3524 / 0.003% |
| 2023 | 39 / #3864 / 0.002% |
| 2022 | 66 / #2640 / 0.004% |
| 2021 | 67 / #2599 / 0.004% |
| 2020 | 53 / #3035 / 0.003% |
| 2019 | 82 / #2239 / 0.005% |
| 2018 | 74 / #2422 / 0.004% |
| 2017 | 45 / #3452 / 0.003% |
| 2016 | 44 / #3544 / 0.002% |
| 2015 | 38 / #3940 / 0.002% |
| Year | Girls (count / rank / %) |
|---|---|
| 2014 | 49 / #3290 / 0.003% |
| 2013 | 62 / #2780 / 0.004% |
| 2012 | 57 / #2986 / 0.003% |
| 2011 | 62 / #2811 / 0.004% |
| 2010 | 71 / #2568 / 0.004% |
| 2009 | 78 / #2454 / 0.004% |
| 2008 | 70 / #2643 / 0.004% |
| 2007 | 57 / #3069 / 0.003% |
| 2006 | 74 / #2491 / 0.004% |
| 2005 | 62 / #2711 / 0.003% |
| Year | Girls (count / rank / %) |
|---|---|
| 2004 | 54 / #2937 / 0.003% |
| 2003 | 49 / #3058 / 0.003% |
| 2002 | 39 / #3482 / 0.002% |
| 2001 | 41 / #3332 / 0.002% |
| 2000 | 34 / #3761 / 0.002% |
| 1999 | 29 / #4007 / 0.002% |
| 1998 | 23 / #4700 / 0.001% |
| 1997 | 17 / #5710 / 0.001% |
| 1996 | 13 / #6869 / 0.001% |
| 1995 | 20 / #4907 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1994 | 7 / #10979 / 0.000% |
| 1993 | 6 / #12340 / 0.000% |
| 1991 | 5 / #13949 / 0.000% |