Declan

Full of goodness, man of prayer — a boy name of Irish origin

GenderBoy
OriginIrish
MeaningFull of goodness, man of prayer
PronunciationDEK-lin

Popularity of Declan in the United States

#139Rank in 2025
2,570Births in 2025
#95 in 2019Peak Popularity
→ Stable10-Year Trend

Data: U.S. Social Security Administration (SSA). Based on all Social Security card applications for births in the United States.

Meaning & Origin of Declan

Declan is an anglicized form of the Irish name Deaglán, whose exact etymology is debated but is often interpreted as meaning "full of goodness" or "man of prayer." The name is associated with Saint Declan of Ardmore, a 5th-century Irish saint who is said to have preceded Saint Patrick in bringing Christianity to Ireland. Saint Declan founded a monastery at Ardmore in County Waterford, which became an important center of learning. The name remained primarily Irish for centuries but has gained international popularity since the 2000s, particularly in the United States, where it entered the top 100 names. Declan's Celtic charm and strong sound have made it a favorite among parents seeking distinctive yet accessible names.

Declan Around the World

Declan is used in 2 languages worldwide.

Languages
EnglishIrish
Details

TypeMale given name

Linguistic data: Wikidata (CC0). Variants and language usage may vary by region.

Nicknames for Declan

DecDexDee

Famous People Named Declan

  • Declan Donnelly — British television presenter, one half of Ant & Dec
  • Elvis Costello (born Declan MacManus) — English singer-songwriter and musician
  • Declan Rice — English professional footballer

Similar Names to Declan

If you like Declan, you might also consider these names with a similar feel.

Also consider:Kieran

Sibling Name Ideas for Declan

Looking for names that pair well with Declan? Here are some sibling name suggestions that share a similar style and feel.

Frequently Asked Questions

What does the name Declan mean?

Declan is a boy name of Irish origin meaning "Full of goodness, man of prayer." Declan is an anglicized form of the Irish name Deaglán, whose exact etymology is debated but is often interpreted as meaning "full of goodness" or "man of prayer." The name is associated with Saint Declan of Ardmore, a 5th-century Irish saint who is said to have preceded Saint Patrick in bringing Christianity to Ireland.

How do you pronounce Declan?

Declan is pronounced DEK-lin. Common variations include Deaglán, Deklan, Declyn.

Is Declan a boy name?

Yes, Declan is traditionally a boy name. Popular nicknames include Dec, Dex, Dee.

Need More Name Ideas?

Like Declan? Our AI Name Generator suggests personalized baby names based on your preferences, surname, and cultural background.

Try Baby Name Generator