Baby Names of Ireland

Declan in Irish: Deaglan

The Irish form of Declan is Deaglan, a boy's name meaning “full of goodness.” Here’s how to say it, where it comes from, and names that go well with it.

Updated September 2026

How to say Deaglan
DECK-lanTwo syllables, stress on the first
Irish form
Deaglan
Meaning
Full of goodness
Gender
Boy
Popularity in Ireland
No. 348 for boys (2025)

How do you say Declan in Irish?

Declan in Irish is Deaglan, pronounced DECK-lan. It has two syllables, with the stress on the first.

Hear Declan said aloud, with its meaning (50 seconds, Baby Names of Ireland on YouTube).

What does Deaglan mean?

Deaglan means “full of goodness.” Declan is one of the English forms of the name.

Read more about Deaglan: its meaning, origin and stories

In 2025, 11 baby boys in Ireland were named Declan, which made it No. 348 that year. That's down from No. 265 ten years earlier. It was most popular in 1971, when 574 baby boys were named Declan, No. 12 that year. The records go back to 1964, when 321 baby boys were given the name.

0300600197019801990200020102020574 in 197111 in 2025
Baby boys named Declan each year. Source: Central Statistics Office, Irish Babies’ Names 2025 (data: table VSA50, boys' names, CC BY 4.0).
See the numbers by year
YearBabiesRank
202511No. 348
202410No. 374
20238No. 436
202213No. 329
202114No. 312
20206No. 496
201910No. 370
201811No. 350
20177No. 443
201620No. 245
201518No. 265
201423No. 237
201322No. 245
201218No. 267
201128No. 204
201033No. 189
200932No. 177
200841No. 159
200727No. 186
200635No. 149
200535No. 141
200446No. 118
200337No. 128
200241No. 112
200140No. 115
200044No. 109
199945No. 103
199844No. 98
199782No. 81
199687No. 77
199584No. 75
1994100No. 69
1993101No. 69
1992125No. 61
1991133No. 59
1990173No. 49
1989172No. 45
1988189No. 42
1987234No. 40
1986245No. 40
1985229No. 44
1984253No. 42
1983269No. 40
1982305No. 38
1981343No. 29
1980348No. 32
1979310No. 30
1978349No. 26
1977362No. 24
1976413No. 21
1975408No. 21
1974434No. 21
1973529No. 14
1972526No. 15
1971574No. 12
1970518No. 15
1969413No. 20
1968399No. 21
1967366No. 21
1966384No. 22
1965412No. 18
1964321No. 23

Deaglan in Ogham

Ogham is the oldest way of writing Irish. It was carved along the edges of standing stones, mostly between the 4th and 6th centuries, and read from the bottom up. In later tradition each letter was named after a tree or plant. Here’s Deaglan, letter by letter.

᚛ᚇᚓᚐᚌᚂᚐᚅ᚜
  1. DDair, oak
  2. EEadhadh, aspen
  3. AAilm, pine
  4. GGort, ivy
  5. LLuis, rowan
  6. AAilm, pine
  7. NNion, ash

Write any name in Ogham with our Ogham translator

Names that go with Declan

Questions about Declan

What is Declan in Irish?
The Irish form of Declan is Deaglan, pronounced DECK-lan. Deaglan means “full of goodness.”
How do you pronounce Deaglan?
Deaglan is pronounced DECK-lan. Two syllables, stress on the first. There's a short video above where you can hear it said.
Is Declan a girl's name or a boy's name?
Declan is a boy's name.
How popular is Declan in Ireland?
In 2025, Declan was No. 348 for boys in Ireland, with 11 babies, according to the Central Statistics Office. It was most popular in 1971, at No. 12.