"black-haired, dark one"
Origin: Irish Gaelic
Language: Irish
Deagan
Boy Name
#5,530 Most Popular
Hidden Gem
2 Syllables
A strong Irish surname name with ancient roots
Irish
American
English
Strong
Earthy
Modern
Meaning & Origin
"descendant of the dark one"
Origin: Old Irish
Language: Irish
The Story of Deagan
Deagan is an anglicized variant of the Irish surname Deegan (O'Deaghaidh), meaning descendant of one who is black-haired or dark. The surname derives from the Irish word dubh (dark, black) combined with the suffix -an. Originally a Gaelic clan name from the Leinster region of Ireland, Deagan has transitioned in recent decades from a surname to a given name in the US and Ireland.
Deagan began rising as a first name in the 2000s, part of the broader surge in Irish surname names becoming given names. Names like Deegan, Reagan, and Keagan paved the way for this variant spelling.
The O'Deegan clan was historically associated with County Laois in Leinster. Using Deagan as a first name honors Irish heritage while feeling fresh and modern.
Fun Facts
- The O'Deegan clan motto is 'Trust not too much in appearance'
- Deegan/Deagan as first names have been rising in the US Top 1000 since the 2000s
Deagan in Other Languages
Irish
Ó Deaghaidh
French
Deagan
German
Deagan
Spanish
Deagan
Famous People Named Deagan
M
Micky Deegan
Athlete
Irish Gaelic footballer
Quick Facts
- Gender
- Boy
- Syllables
- 2
- Popularity Rank
- #5,530
- Total SSA Count
- 17
- Cultural Origins
- Irish American English
- Pronunciation
- Easy
- Formality
- Moderate
- Cross-Cultural Ease
- Moderate
Common Nicknames
Dee
Deags
Pairs Well With
Deagan James
Deagan Patrick
Deagan Michael
Deagan Sean
Deagan Connor
Sibling Names
Similar Names
Same Origin Names (Irish)
Playground Safety
Kid-Friendly
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Frequently Asked Questions About Deagan
What does the name Deagan mean?
"black-haired, dark one" (from Irish Gaelic). "descendant of the dark one" (from Old Irish). Deagan is an anglicized variant of the Irish surname Deegan (O'Deaghaidh), meaning descendant of one who is black-haired or dark. The surname derives from the Irish word dubh (dark, black) combined with the suffix -an. Originally a Gaelic clan name from the Leinster region of Ireland, Deagan has transitioned in recent decades from a surname to a given name in the US and Ireland.
What is the origin of the name Deagan?
Deagan has Irish Gaelic, Old Irish, Irish, American, and English origins. In Irish Gaelic, it means "black-haired, dark one". In Old Irish, it means "descendant of the dark one".
Is Deagan a boy or girl name?
Deagan is primarily used as a boy name.
How popular is the name Deagan?
Deagan is currently ranked #5530 in popularity for boy names in the United States.
What are common nicknames for Deagan?
Common nicknames for Deagan include Dee and Deags.
What are good middle names for Deagan?
Popular middle name pairings include Deagan James, Deagan Patrick, Deagan Michael, Deagan Sean, and Deagan Connor.
What are good sibling names for Deagan?
Names that pair well with Deagan as siblings include Finnegan, Rowan, Nolan, Sloane, and Briar.
How many syllables does Deagan have?
Deagan has 2 syllables, making it easy to say and remember.
Is Deagan a common or rare name?
Deagan is an uncommon name, ranked #5530 in the US. Its rarity gives it a distinctive, memorable quality.
About the Name Deagan
Deagan is a boy name with Irish, American, and English origins . The name means "black-haired, dark one" in Irish Gaelic .
Deagan is currently ranked #5,530 in popularity for boy names in the United States.
The name Deagan has 2 syllables, making it easy to pronounce and remember.
Common nicknames for Deagan include Dee and Deags. These shorter forms provide casual alternatives while keeping the elegance of the full name.