Delos
Delos was last recorded in 2020, when 5 babies were given it; 1,324 Americans have been recorded with it between 1880 and 2020 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Delos by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Delos?
Unranked in 2025
Its last boys’ rank on record is #12,487, in 2020; SSA lists a name only in years with 5 or more births.
49 babies in 1923, the peak
Delos peaked in 1923, when 49 boys were given it, #998 among boys’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2020 | 5 | #12,487 | 2.9 |
| 2017 | 6 | #11,088 | 3.2 |
| 1990 | 6 | #7,387 | 2.9 |
| 1986 | 5 | #6,978 | 2.7 |
| 1980 | 6 | #5,691 | 3.4 |
| 1976 | 8 | #4,091 | 5.1 |
| 1970 | 6 | #4,359 | 3.2 |
| 1969 | 9 | #3,118 | 5.0 |
| 1967 | 7 | #3,329 | 4.0 |
| 1964 | 8 | #3,100 | 4.0 |
Every recorded year (77)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 1963 | 5 | #4,190 | 2.5 |
| 1961 | 11 | #2,579 | 5.2 |
| 1960 | 10 | #2,727 | 4.7 |
| 1959 | 16 | #2,049 | 7.5 |
| 1958 | 10 | #2,685 | 4.7 |
| 1957 | 12 | #2,402 | 5.6 |
| 1956 | 10 | #2,668 | 4.7 |
| 1955 | 15 | #2,069 | 7.3 |
| 1954 | 9 | #2,788 | 4.4 |
| 1953 | 12 | #2,309 | 6.1 |
| 1952 | 13 | #2,172 | 6.7 |
| 1951 | 8 | #2,895 | 4.2 |
| 1950 | 10 | #2,472 | 5.6 |
| 1949 | 11 | #2,370 | 6.2 |
| 1948 | 12 | #2,239 | 6.8 |
| 1947 | 7 | #3,149 | 3.8 |
| 1946 | 22 | #1,524 | 13.5 |
| 1945 | 13 | #1,946 | 9.7 |
| 1944 | 13 | #2,013 | 9.5 |
| 1943 | 16 | #1,851 | 11.2 |
| 1942 | 15 | #1,884 | 10.9 |
| 1941 | 20 | #1,543 | 16.3 |
| 1940 | 15 | #1,820 | 12.9 |
| 1939 | 17 | #1,657 | 15.4 |
| 1938 | 23 | #1,403 | 20.7 |
| 1937 | 22 | #1,457 | 20.6 |
| 1936 | 20 | #1,514 | 19.3 |
| 1935 | 26 | #1,335 | 25.0 |
| 1934 | 29 | #1,248 | 28.1 |
| 1933 | 30 | #1,210 | 30.3 |
| 1932 | 37 | #1,115 | 35.4 |
| 1931 | 28 | #1,313 | 26.9 |
| 1930 | 30 | #1,310 | 27.3 |
| 1929 | 36 | #1,157 | 33.5 |
| 1928 | 25 | #1,485 | 22.6 |
| 1927 | 40 | #1,130 | 35.5 |
| 1926 | 34 | #1,247 | 30.6 |
| 1925 | 38 | #1,147 | 34.1 |
| 1924 | 33 | #1,270 | 29.1 |
| 1923 | 49 | #998 | 44.7 |
| 1922 | 43 | #1,078 | 39.5 |
| 1921 | 32 | #1,303 | 29.1 |
| 1920 | 35 | #1,228 | 32.9 |
| 1919 | 42 | #1,051 | 42.9 |
| 1918 | 40 | #1,082 | 39.5 |
| 1917 | 36 | #1,119 | 38.9 |
| 1916 | 37 | #1,060 | 41.6 |
| 1915 | 23 | #1,422 | 27.1 |
| 1914 | 26 | #1,134 | 39.7 |
| 1913 | 22 | #1,081 | 42.9 |
| 1912 | 14 | #1,288 | 32.6 |
| 1910 | 9 | #1,134 | 46.3 |
| 1908 | 6 | #1,248 | 38.9 |
| 1906 | 6 | #1,146 | 45.1 |
| 1905 | 5 | #1,278 | 37.8 |
| 1904 | 10 | #771 | 78.1 |
| 1901 | 5 | #1,089 | 47.0 |
| 1897 | 7 | #868 | 62.1 |
| 1896 | 6 | #1,008 | 50.2 |
| 1895 | 8 | #810 | 68.1 |
| 1891 | 5 | #1,004 | 49.4 |
| 1890 | 9 | #680 | 81.1 |
| 1887 | 6 | #843 | 59.2 |
| 1884 | 5 | #1,005 | 43.7 |
| 1883 | 6 | #818 | 57.3 |
| 1882 | 6 | #861 | 52.8 |
| 1880 | 7 | #764 | 63.4 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Delos a boy’s or a girl’s name?
Delos has been recorded only for boys: SSA lists no girls with the name in 77 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Delos: the SSA national file counts each sex separately.
How many people are named Delos, and how old are they?
An estimated 247 Americans named Delos and born in the U.S. are alive in 2026 (19% of everyone recorded); the median is 71 years old and half are between 63 and 81. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 460 people named Delos (14 women and girls, 446 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 334 born in the U.S. The Census count is 38% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 4 names spelled alike, given to 1,731 babies since 1880, Delos is the most given (76% of them).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Delos
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Delos and names like it
- Compare Delos and DelossBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1920sDelos peaked in 1923.
- Michigan’s most given namesThe state where SSA recorded the most babies named Delos since 1910.
- The top names of 1923The year the most babies were named Delos.
- The names of the Baby BoomersMost people named Delos alive today were born 1946-1964.
- Names starting with DMost given first.