Declan
Irish Deaglán, borne by a fifth-century saint of Ardmore; its literal meaning is not known.
Popularity, 1880–2025
Declan first shows up in the national records in 1951. It has ranked among the top 100 names for American boys in 1 different years between 2019 and 2019. Its biggest year was 2019, when 3,971 newborn boys received the name, ranking it No. 95 nationally. In 2025 it ranked No. 139 for boys. All told, 58,950 Americans have been given the name since 1880.
Related names
Other spellings on record: Deklan (2,484), Deklyn (975), Declyn (768), Decklan (600), Deklin (595), Decklyn (510) (total births since 1880)
Explore Declan interactively →By the decade
| Decade | Births | Best rank |
|---|---|---|
| 1950s | 27 | No. 3505 |
| 1960s | 70 | No. 2673 |
| 1970s | 53 | No. 2891 |
| 1980s | 145 | No. 2068 |
| 1990s | 1,135 | No. 569 |
| 2000s | 7,268 | No. 309 |
| 2010s | 31,107 | No. 95 |
| 2020s | 18,742 | No. 101 |
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.