Ercilia is a very rare girls' name that was most common in the 1940s and has all but disappeared.
Ercilia is a girl name. It last appears in U.S. records in 1993. Ercilia first appears in 1919 and peaked in 1944 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1993 | 7 | — | #10,939 |
| 1979 | 6 | — | #9,339 |
| 1976 | 7 | — | #7,530 |
| 1970 | 5 | — | #8,358 |
| 1967 | 5 | — | #7,091 |
| 1966 | 5 | — | #6,875 |
| 1963 | 6 | — | #6,076 |
| 1956 | 9 | — | #4,256 |
| 1954 | 7 | — | #4,808 |
| 1949 | 5 | — | #5,481 |
| 1945 | 6 | — | #4,178 |
| 1944 | 11 | — | #2,817 |
| 1942 | 6 | — | #4,265 |
| 1941 | 7 | — | #3,677 |
| 1940 | 5 | — | #4,549 |
| 1939 | 10 | — | #2,780 |
| 1938 | 7 | — | #3,584 |
| 1937 | 5 | — | #4,449 |
| 1935 | 8 | — | #3,241 |
| 1931 | 7 | — | #3,606 |
| 1928 | 5 | — | #4,948 |
| 1925 | 8 | — | #3,792 |
| 1922 | 6 | — | #4,622 |
| 1921 | 9 | — | #3,494 |
| 1920 | 5 | — | #5,220 |
| 1919 | 5 | — | #5,036 |