Declan
Boy name · Irish · pronounced DEK-lan
Verified name
What does Declan mean?
Full of goodness or man of prayer
Origin and language
Irish
Language family: Irish|English
Popularity in the United States
Ranked No. 138 in the U.S. in 2025, so it is very popular. Source: U.S. Social Security Administration data.
Popularity in England and Wales
No. 372 in England and Wales in 2025
Contains Office for National Statistics data licensed under the Open Government Licence v3.0.
Related names, nicknames, and variants
Nickname: Dec, Decky
Variant: Deaglán
Using Declan across cultures
5th-century Irish saint name now popular in North America.
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