Declan
BoyIrish
Declan is a boy name of Irish origin meaning "one who is full of goodness".
About this name
Gender
Boy
Language
Irish
Religion
Christian
Popularity
7 / 100
Syllables
2
Length
6 letters
Meaning
one who is full of goodness
Etymology
Derived from Old Irish deagh ‘good’ combined with the suffix -lán ‘full of’, originally rendered as Déaglán.
Famous People Named Declan
- Declan Rice — English footballer (born 1999)
- Declan Galbraith — English singer, actor
- Declan McKenna — British musician
Frequently Asked Questions About Declan
What does the name Declan mean?
Declan means "one who is full of goodness", and is of Irish origin.
What is the origin of the name Declan?
Declan originates from Irish, commonly used in Western Europe.
Is Declan a boy or girl name?
Declan is typically used as a boy name.
What religion is the name Declan associated with?
Declan is associated with Christian.
Are there famous people named Declan?
Yes — notable people named Declan include Declan Rice (English footballer, born 1999), Declan Galbraith (English singer) and Declan McKenna (British musician).
Last updated: June 2026