The baby name Illona appears in baby name data for the United States from 1943 to 1951. It was most popular in 1943 with 6 babies given the name.
Over the period shown, Illona has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1943 | 6 |
| 1946 | 6 |
| 1949 | 5 |
| 1951 | 5 |