The baby name Lilyan appears in baby name data for the United States from 1910 to 2024. It was most popular in 2008 with 173 babies given the name.
In the later years of this period, Lilyan has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 12 |
| 1911 | 10 |
| 1912 | 35 |
| 1913 | 42 |
| 1914 | 59 |
| 1915 | 87 |
| 1916 | 78 |
| 1917 | 99 |
| 1918 | 104 |
| 1919 | 50 |
| 1920 | 45 |
| 1921 | 29 |
| 1922 | 30 |
| 1923 | 12 |
| 1924 | 15 |
| 1925 | 10 |
| 1926 | 18 |
| 1929 | 14 |
| 1931 | 11 |
| 1932 | 11 |
| 1934 | 7 |
| 1936 | 6 |
| 1943 | 6 |
| 1996 | 10 |
| 2000 | 10 |
| 2002 | 12 |
| 2003 | 25 |
| 2004 | 64 |
| 2005 | 106 |
| 2006 | 131 |
| 2007 | 169 |
| 2008 | 173 |
| 2009 | 112 |
| 2010 | 88 |
| 2011 | 154 |
| 2012 | 108 |
| 2013 | 106 |
| 2014 | 34 |
| 2015 | 64 |
| 2016 | 25 |
| 2017 | 17 |
| 2018 | 5 |
| 2019 | 10 |
| 2020 | 6 |
| 2022 | 5 |
| 2023 | 10 |
| 2024 | 6 |