Declan is a boy's name of Irish and Celtic origin. Its meaning is not recorded in the standard references we check — we would rather tell you that plainly than guess. In 2024 it was given to 2,758 boys in the United States.
Declan at a glance
Gender
Boy name
Origin
Irish & Celtic
Meaning
Not recorded in standard references
Pronunciation
/ˈdɛklən/
Also spelled
Irish
About the name Declan
Declan belongs to the Irish & Celtic tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess. It travels in a few spellings: Irish.
In the United States, Declan first appears in Social Security records in 1951. It climbed to its best-ever rank of #95 in 2019, and in 2024 2,758 babies received the name — 55,965 in total since 1880. Those are the official counts, not estimates.
The meaning of Declan is not recorded in the standard references we check. Rather than repeat an unsourced claim, we leave it open — its Irish and Celtic origin is documented, but its exact meaning is not.
Is Declan a boy or girl name?
Declan is a boy name. In 2024, 2,758 babies received the name in the US.
What origin is the name Declan?
Declan comes from the Irish & Celtic tradition. It is also spelled Irish.
How popular is the name Declan?
Declan first appears in US records in 1951. Its best-ever ranking was #95 in 2019, and 2,758 babies were given the name in 2024.
How do you pronounce Declan?
Declan is pronounced /ˈdɛklən/ (IPA).
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Meaning and origin for this page were checked against this source. US popularity figures are from the Social Security Administration's public baby-names data. If you spot an error, write to [email protected] — accuracy is the whole point of this site, and corrections are made fast.
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