The baby name Milly appears in baby name data for the United States from 1922 to 2024. It was most popular in 2008 with 80 babies given the name.
In the later years of this period, Milly has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1922 | 10 |
| 1942 | 5 |
| 1957 | 12 |
| 1962 | 6 |
| 1963 | 5 |
| 1989 | 5 |
| 2002 | 5 |
| 2003 | 7 |
| 2004 | 21 |
| 2005 | 12 |
| 2006 | 16 |
| 2007 | 5 |
| 2008 | 80 |
| 2009 | 15 |
| 2010 | 51 |
| 2011 | 11 |
| 2012 | 55 |
| 2013 | 32 |
| 2014 | 75 |
| 2015 | 33 |
| 2016 | 67 |
| 2017 | 33 |
| 2018 | 34 |
| 2019 | 45 |
| 2020 | 34 |
| 2021 | 41 |
| 2022 | 68 |
| 2023 | 48 |
| 2024 | 42 |