Declan
Declan: name meaning, origin and popularity
Pronunciation (IPA): /ˈdɛklən/
Meaning and origin of Declan
- A male given name from Old Irish, borne notably by Declán of Ardmore
Etymology
From Old Irish Declán, whence the modern Irish equivalent Deaglán.
How popular is Declan?
Since 1880, 403 girls and 58,547 boys in the U.S. have been named Declan (1% girls). Its highest rank for girls was #3755 in 2021. Its highest rank for boys was #95 in 2019. In 2025 it ranked #139 for boys, with 2,587 babies given the name.
Names similar to Declan
Names that start with the same letters, most popular first.
More Irish boy names
Sibling name ideas for Declan
Sister and brother names that share Declan's Irish roots and are still in the U.S. top 1,000.
Declan FAQ
What does the name Declan mean?
A male given name from Old Irish, borne notably by Declán of Ardmore From Old Irish Declán, whence the modern Irish equivalent Deaglán.
What is the origin of the name Declan?
Declan is listed as a name of Irish origin.
How popular is the name Declan?
Since 1880, 403 girls and 58,547 boys in the U.S. have been named Declan (1% girls). Its highest rank for girls was #3755 in 2021. Its highest rank for boys was #95 in 2019. In 2025 it ranked #139 for boys, with 2,587 babies given the name.
Is Declan a boy or girl name?
Declan is mostly a boy name in the U.S.: 403 girls and 58,547 boys since 1880.
Popularity data: U.S. Social Security Administration baby name data, 1880–2025 (names given to 5+ babies per year). Origin and etymology text: Wiktionary, available under CC BY-SA 4.0.