Rosaire is a rare variant of Rosario that was most common in the 1920s and has all but disappeared.
Rosaire is predominantly a boy name. It last appears in U.S. records in 1951. Rosaire first appears in 1912 and peaked in 1927 (24 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1951 | 5 | — | — | #4,153 |
| 1948 | 13 | — | #5,876 | #2,972 |
| 1947 | 5 | — | — | #4,174 |
| 1946 | 5 | — | — | #3,940 |
| 1945 | 11 | — | #5,118 | #3,270 |
| 1943 | 8 | — | — | #2,930 |
| 1942 | 6 | — | — | #3,506 |
| 1941 | 6 | — | — | #3,440 |
| 1938 | 5 | — | — | #3,950 |
| 1937 | 9 | — | — | #2,641 |
| 1935 | 5 | — | — | #4,065 |
| 1933 | 8 | — | — | #2,950 |
| 1932 | 13 | — | — | #2,173 |
| 1931 | 7 | — | — | #3,346 |
| 1930 | 8 | — | — | #3,246 |
| 1929 | 9 | — | — | #2,936 |
| 1928 | 9 | — | — | #3,032 |
| 1927 | 24 | — | — | #1,595 |
| 1926 | 18 | — | — | #1,898 |
| 1925 | 13 | — | — | #2,410 |
| 1924 | 21 | — | — | #1,768 |
| 1923 | 15 | — | — | #2,208 |
| 1922 | 10 | — | — | #2,968 |
| 1921 | 8 | — | — | #3,455 |
| 1920 | 17 | — | — | #2,037 |
| 1919 | 18 | — | — | #1,866 |
| 1918 | 12 | — | — | #2,513 |
| 1917 | 15 | — | — | #2,069 |
| 1916 | 10 | — | — | #2,701 |
| 1915 | 13 | — | — | #2,157 |
| 1913 | 5 | — | — | #3,186 |
| 1912 | 6 | — | — | #2,497 |