Dellar is a rare girls' name that was most common in the 1900s and has all but disappeared.
Dellar is a girl name. It last appears in U.S. records in 1960. Dellar was first reported in SSA data in 1880 and peaked in 1900 (21 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1960 | 5 | — | #6,578 |
| 1951 | 5 | — | #5,601 |
| 1950 | 7 | — | #4,411 |
| 1947 | 5 | — | #5,488 |
| 1942 | 5 | — | #4,771 |
| 1941 | 6 | — | #4,062 |
| 1938 | 5 | — | #4,470 |
| 1937 | 6 | — | #3,896 |
| 1936 | 6 | — | #3,795 |
| 1935 | 9 | — | #2,978 |
| 1934 | 7 | — | #3,535 |
| 1932 | 10 | — | #2,863 |
| 1930 | 8 | — | #3,415 |
| 1929 | 8 | — | #3,459 |
| 1928 | 9 | — | #3,234 |
| 1927 | 11 | — | #2,903 |
| 1926 | 12 | — | #2,737 |
| 1925 | 14 | — | #2,517 |
| 1924 | 14 | — | #2,556 |
| 1923 | 13 | — | #2,616 |
| 1922 | 15 | — | #2,412 |
| 1921 | 19 | — | #2,064 |
| 1920 | 17 | — | #2,192 |
| 1919 | 13 | — | #2,548 |
| 1918 | 15 | — | #2,307 |
| 1917 | 10 | — | #2,934 |
| 1916 | 9 | — | #3,085 |
| 1915 | 11 | — | #2,574 |
| 1914 | 10 | — | #2,304 |
| 1913 | 13 | — | #1,697 |
| 1912 | 10 | — | #1,876 |
| 1911 | 8 | — | #1,821 |
| 1910 | 8 | — | #1,809 |
| 1909 | 10 | — | #1,390 |
| 1908 | 11 | — | #1,279 |
| 1907 | 11 | — | #1,226 |
| 1906 | 8 | — | #1,450 |
| 1905 | 9 | — | #1,328 |
| 1904 | 10 | — | #1,187 |
| 1903 | 7 | — | #1,476 |
| 1902 | 12 | — | #1,034 |
| 1901 | 6 | — | #1,526 |
| 1900 | 21 | — | #809 |
| 1899 | 10 | — | #1,044 |
| 1898 | 6 | — | #1,548 |
| 1897 | 7 | — | #1,288 |
| 1896 | 6 | — | #1,454 |
| 1895 | 5 | — | #1,654 |
| 1894 | 12 | — | #912 |
| 1893 | 10 | — | #969 |
| 1892 | 11 | — | #914 |
| 1890 | 9 | — | #954 |
| 1889 | 7 | — | #1,047 |
| 1888 | 9 | — | #908 |
| 1887 | 5 | — | #1,181 |
| 1885 | 11 | — | #665 |
| 1884 | 8 | — | #804 |
| 1883 | 8 | — | #709 |
| 1882 | 10 | — | #604 |
| 1880 | 9 | — | #592 |