The baby name Ileen appears in baby name data for the United States from 1915 to 2016. It was most popular in 1924 with 28 babies given the name.
In the later years of this period, Ileen has become less common than it once was.
| Year | Count |
|---|---|
| 1915 | 6 |
| 1916 | 5 |
| 1918 | 5 |
| 1920 | 10 |
| 1922 | 17 |
| 1923 | 5 |
| 1924 | 28 |
| 1925 | 21 |
| 1926 | 6 |
| 1927 | 6 |
| 1930 | 6 |
| 1944 | 8 |
| 1945 | 7 |
| 1946 | 6 |
| 1947 | 5 |
| 1948 | 5 |
| 1950 | 5 |
| 1954 | 9 |
| 1955 | 7 |
| 1962 | 6 |
| 2005 | 10 |
| 2007 | 5 |
| 2010 | 6 |
| 2014 | 5 |
| 2016 | 5 |