The baby name Reilly appears in baby name data for the United States from 1985 to 2024. It was most popular in 1998 with 405 babies given the name.
Over the period shown, Reilly has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1985 | 5 |
| 1990 | 10 |
| 1992 | 5 |
| 1993 | 5 |
| 1993 | 11 |
| 1994 | 16 |
| 1994 | 33 |
| 1995 | 41 |
| 1995 | 35 |
| 1996 | 120 |
| 1996 | 84 |
| 1997 | 368 |
| 1997 | 122 |
| 1998 | 405 |
| 1998 | 116 |
| 1999 | 279 |
| 1999 | 124 |
| 2000 | 236 |
| 2000 | 156 |
| 2001 | 294 |
| 2001 | 182 |
| 2002 | 277 |
| 2002 | 148 |
| 2003 | 268 |
| 2003 | 192 |
| 2004 | 286 |
| 2004 | 121 |
| 2005 | 255 |
| 2005 | 154 |
| 2006 | 180 |
| 2006 | 114 |
| 2007 | 200 |
| 2007 | 162 |
| 2008 | 135 |
| 2008 | 206 |
| 2009 | 121 |
| 2009 | 128 |
| 2010 | 87 |
| 2010 | 95 |
| 2011 | 110 |
| 2011 | 87 |
| 2012 | 49 |
| 2012 | 117 |
| 2013 | 66 |
| 2013 | 64 |
| 2014 | 58 |
| 2014 | 56 |
| 2015 | 73 |
| 2015 | 38 |
| 2016 | 80 |
| 2016 | 60 |
| 2017 | 36 |
| 2017 | 22 |
| 2018 | 23 |
| 2018 | 36 |
| 2019 | 34 |
| 2019 | 27 |
| 2020 | 49 |
| 2021 | 42 |
| 2021 | 5 |
| 2022 | 24 |
| 2022 | 22 |
| 2023 | 12 |
| 2023 | 12 |
| 2024 | 28 |
| 2024 | 7 |