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Declan

Say it: DEK-lan/ˈdɛklən/

BoyIrish6 letters2 syllables

#348

in Ireland (2025)

#336 with spellings combined

11

babies in 2025

#12

best rank (1971)

10,909

babies since 1964

Down 71

10-year rank change

Declan through the years

Compare with another name →
Declan: babies per year in Ireland, 1964 to 20250200400600800196419701980199020002010202020251998: CSO series changePeak 1971: 574
Declan: rank per year in Ireland, 1964 to 2025#1#10#50#100#250#500196419701980199020002010202020251998: CSO series change
Declan: per 10,000 boys per year in Ireland, 1964 to 2025050100150200196419701980199020002010202020251998: CSO series change
Babies per 10,000 boys listed by the CSO that year, which evens out changes in the number of births.
Show the numbers
YearBabies (boys)Rank
202511#336
202410#360
20238#426
202213#320
202114#300
20206#472
201910#357
201811#342
20177#443
201620#245
201518#265
201423#237
201322#245
201218#267
201128#204
201033#189
200932#177
200841#159
200727#186
200635#149
200535#141
200446#118
200337#128
200241#112
200140#115
200044#109
199945#103
199844#98
199782#81
199687#77
199584#75
1994100#69
1993101#69
1992125#61
1991133#59
1990173#49
1989172#45
1988189#42
1987234#40
1986245#40
1985229#44
1984253#42
1983269#40
1982305#38
1981343#29
1980348#32
1979310#30
1978349#26
1977362#24
1976413#21
1975408#21
1974434#21
1973529#14
1972526#15
1971574#12
1970518#15
1969413#20
1968399#21
1967366#21
1966384#22
1965412#18
1964321#23

Source: CSO, Irish Babies' Names (VSA50, VSA60), CC BY 4.0.

★ What does Declan mean?

Uncertain, sometimes given as "full of goodness"

Irish, from the Old Irish saint's name Declán, modern Irish Deaglán.

Say it right

DEKlan

The story of Declan

Declan is the English spelling of Declán, the name of an early Irish saint. The modern Irish form is Deaglán. Its meaning is not certain. It is often said to mean “full of goodness” or “man of prayer”, but those are popular explanations rather than a proven etymology.

St Declan founded the monastery at Ardmore in Co. Waterford in the 5th century and was the patron saint of the Déisi of east Munster. Tradition makes him one of four Munster saints who preached there before St Patrick arrived. St Declan’s Stone, a boulder on the beach at Ardmore, is said to have carried his bell across the sea. His feast day is 24 July.

Declan was one of the big Irish boys’ names of the 1960s and 1970s. Its best year was 1971, when 574 boys were named Declan and it reached number 12. It has fallen a long way since, and just 11 boys were given it in 2025. In Northern Ireland its highest place was 54th, in 1997, the first year of the figures there.

Say it differently where you're from, or spotted something wrong? Tell us.

Sources
  • Wiktionary: Declan (English proper noun)
  • Wikipedia: Declan (given name)
  • Wikipedia: Declán of Ardmore
  • CSO VSA50, Boys Names in Ireland with 3 or More Occurrences
  • NISRA, Baby Names in Northern Ireland

At a glance

Similar names

DeaglanRonanAidanCathal

Sibling ideas

EmerNiamhSinéad

Nicknames

Dec

Spellings counted here

Spelling2025All years
Declan1110,909

In Northern Ireland

#270 in 2025 with 6 babies. Best rank #54 (1997); 605 babies since 1997.

Source: NISRA, Open Government Licence.

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