The baby name Lilliam appears in baby name data for the United States from 1921 to 1986. It was most popular in 1959 with 22 babies given the name.
Over the period shown, Lilliam has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1921 | 5 |
| 1954 | 8 |
| 1955 | 8 |
| 1956 | 14 |
| 1957 | 20 |
| 1958 | 14 |
| 1959 | 22 |
| 1960 | 16 |
| 1961 | 7 |
| 1962 | 8 |
| 1963 | 6 |
| 1964 | 6 |
| 1965 | 11 |
| 1966 | 13 |
| 1967 | 11 |
| 1968 | 14 |
| 1969 | 7 |
| 1970 | 11 |
| 1971 | 9 |
| 1973 | 11 |
| 1986 | 5 |