Delsa is a very rare girls' name that peaked in 1917 and has grown less common since.
Delsa is a girl name. In 2025 it ranked #15,496 for girl births in the United States (and #25,710 across all names), given to 5 babies. Delsa first appears in 1917 and peaked in 1917 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 5 | 5 | #15,496 |
| 2023 | 6 | 6 | #13,869 |
| 2022 | 5 | 5 | #15,915 |
| 2021 | 10 | 10 | #9,750 |
| 2020 | 8 | 8 | #11,352 |
| 2018 | 7 | 7 | #12,821 |
| 2017 | 9 | 9 | #10,918 |
| 2015 | 5 | 5 | #17,138 |
| 2014 | 7 | 7 | #13,437 |
| 2013 | 9 | 9 | #11,253 |
| 1969 | 5 | — | #7,735 |
| 1965 | 5 | — | #6,758 |
| 1963 | 6 | — | #6,041 |
| 1958 | 6 | — | #5,565 |
| 1955 | 5 | — | #6,041 |
| 1952 | 7 | — | #4,590 |
| 1950 | 6 | — | #4,862 |
| 1948 | 5 | — | #5,427 |
| 1947 | 8 | — | #4,076 |
| 1946 | 7 | — | #4,089 |
| 1943 | 6 | — | #4,295 |
| 1937 | 6 | — | #3,898 |
| 1934 | 6 | — | #3,915 |
| 1933 | 7 | — | #3,493 |
| 1932 | 8 | — | #3,343 |
| 1931 | 6 | — | #3,980 |
| 1930 | 6 | — | #4,145 |
| 1929 | 5 | — | #4,735 |
| 1928 | 5 | — | #4,880 |
| 1926 | 6 | — | #4,431 |
| 1925 | 8 | — | #3,756 |
| 1923 | 7 | — | #4,076 |
| 1922 | 8 | — | #3,737 |
| 1921 | 6 | — | #4,599 |
| 1920 | 6 | — | #4,514 |
| 1918 | 10 | — | #3,082 |
| 1917 | 11 | — | #2,739 |