Blasa is a very rare variant of Blaise that was most common in the 1920s and has all but disappeared.
Blasa is a girl name. It last appears in U.S. records in 1951. Blasa was first reported in SSA data in 1909 and peaked in 1928 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1951 | 5 | — | #5,482 |
| 1948 | 6 | — | #4,718 |
| 1946 | 5 | — | #5,021 |
| 1942 | 5 | — | #4,694 |
| 1941 | 5 | — | #4,481 |
| 1940 | 8 | — | #3,243 |
| 1937 | 6 | — | #3,853 |
| 1935 | 6 | — | #3,803 |
| 1934 | 6 | — | #3,866 |
| 1932 | 9 | — | #3,076 |
| 1931 | 5 | — | #4,405 |
| 1930 | 7 | — | #3,698 |
| 1928 | 11 | — | #2,788 |
| 1927 | 9 | — | #3,313 |
| 1926 | 6 | — | #4,375 |
| 1925 | 9 | — | #3,395 |
| 1924 | 5 | — | #5,167 |
| 1923 | 8 | — | #3,691 |
| 1922 | 9 | — | #3,408 |
| 1921 | 9 | — | #3,442 |
| 1920 | 7 | — | #4,007 |
| 1919 | 8 | — | #3,503 |
| 1917 | 6 | — | #4,152 |
| 1916 | 10 | — | #2,852 |
| 1913 | 6 | — | #2,869 |
| 1912 | 6 | — | #2,675 |
| 1909 | 5 | — | #2,247 |