Adelaido is a very rare variant of Adelaide that was most common in the 1910s and has all but disappeared.
Adelaido is a boy name. It last appears in U.S. records in 2006. Adelaido was first reported in SSA data in 1917 and peaked in 1919 (9 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2006 | 7 | 7 | #9,597 |
| 1995 | 5 | — | #8,878 |
| 1993 | 5 | — | #8,712 |
| 1992 | 5 | — | #8,453 |
| 1991 | 7 | — | #6,525 |
| 1983 | 7 | — | #4,917 |
| 1980 | 5 | — | #6,259 |
| 1968 | 5 | — | #4,139 |
| 1965 | 5 | — | #3,932 |
| 1962 | 5 | — | #4,035 |
| 1961 | 6 | — | #3,653 |
| 1958 | 6 | — | #3,562 |
| 1956 | 5 | — | #3,945 |
| 1954 | 5 | — | #3,829 |
| 1951 | 9 | — | #2,663 |
| 1948 | 5 | — | #3,674 |
| 1947 | 5 | — | #3,734 |
| 1945 | 5 | — | #3,340 |
| 1942 | 6 | — | #3,215 |
| 1940 | 5 | — | #3,465 |
| 1938 | 9 | — | #2,480 |
| 1937 | 7 | — | #2,906 |
| 1936 | 6 | — | #3,151 |
| 1934 | 5 | — | #3,683 |
| 1933 | 7 | — | #3,006 |
| 1931 | 6 | — | #3,391 |
| 1929 | 6 | — | #3,562 |
| 1928 | 6 | — | #3,703 |
| 1927 | 7 | — | #3,454 |
| 1925 | 7 | — | #3,414 |
| 1924 | 6 | — | #3,872 |
| 1923 | 7 | — | #3,468 |
| 1922 | 5 | — | #4,309 |
| 1921 | 5 | — | #4,326 |
| 1920 | 5 | — | #4,291 |
| 1919 | 9 | — | #2,879 |
| 1918 | 5 | — | #4,185 |
| 1917 | 5 | — | #3,985 |