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Declan
BoyMeaning of Declan: Irish: 'full of goodness'
Declan is a boy's name most strongly associated with Irish naming. It has 6 letters and 2 syllables, and it is one of today's most-chosen names — 146th most popular boys' name in the United States in 2025 and 371st in England & Wales.
US rank 2025
#146
2,587 babies in 2025
England & Wales 2024
#371
116 babies in 2024
US babies since 1880
58,950
First recorded 1951 · peak 2019
Trend
stable
Style: popular
Popularity over time
Gender split
99% boys · 1% girls, based on US, UK and international usage.
Origins & cultures
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