Lillar is a very rare girls' name that was most common in the 1910s and has all but disappeared.
Lillar is a girl name. It last appears in U.S. records in 1947. Lillar was first reported in SSA data in 1894 and peaked in 1918 (10 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1947 | 5 | — | #5,747 |
| 1929 | 5 | — | #4,974 |
| 1923 | 5 | — | #5,367 |
| 1921 | 7 | — | #4,264 |
| 1920 | 6 | — | #4,697 |
| 1919 | 6 | — | #4,557 |
| 1918 | 10 | — | #3,148 |
| 1915 | 6 | — | #4,045 |
| 1911 | 7 | — | #2,086 |
| 1910 | 7 | — | #2,035 |
| 1906 | 5 | — | #2,099 |
| 1901 | 5 | — | #1,824 |
| 1900 | 5 | — | #2,088 |
| 1898 | 5 | — | #1,836 |
| 1897 | 6 | — | #1,472 |
| 1896 | 7 | — | #1,364 |
| 1894 | 7 | — | #1,295 |