Dillon
Welsh, read as “great tide” or “sea,” borne by a figure in the Mabinogi.
Popularity, 1880–2025
Dillon first shows up in the national records in 1892. It has ranked among the top 100 names for American boys in every year from 1992 to 1993. Its biggest year was 1992, when 5,062 newborn boys received the name, ranking it No. 73 nationally. In 2025 it ranked No. 929 for boys. All told, 66,270 Americans have been given the name since 1880.
Related names
Other spellings on record: Dylan (434,951), Dillan (7,387), Dilan (6,138), Dylon (4,517), Dyllan (3,802), Dylann (1,293) (total births since 1880)
Explore Dillon interactively →By the decade
| Decade | Births | Best rank |
|---|---|---|
| 1890s | 12 | No. 956 |
| 1910s | 127 | No. 1290 |
| 1920s | 169 | No. 1694 |
| 1930s | 123 | No. 1783 |
| 1940s | 92 | No. 1986 |
| 1950s | 76 | No. 2153 |
| 1960s | 79 | No. 2409 |
| 1970s | 483 | No. 875 |
| 1980s | 4,501 | No. 251 |
| 1990s | 32,661 | No. 73 |
| 2000s | 17,708 | No. 169 |
| 2010s | 7,170 | No. 304 |
| 2020s | 2,024 | No. 668 |
Births and rank shown for boys, the sex more often given the name. The Social Security Administration omits name–year combinations with fewer than five births.
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Data: U.S. Social Security Administration national baby-name file, 1880–2025.