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What does Duffy mean?

Duffy /duf-fy/ as a boys' name is of Gaelic origin, and the name Duffy means "swarthy". Duffy is a version, with the suffix -y, of Duff (Gaelic): from the Gaelic "dubh".

Associated with: gaelic, swarthy (dark).


Duffy has 2 variants: Duffey and Duffie.

Kreatif forms:
(male) Dufeau, Dufry, ..

(female) Dufra, Dufri, ..

How popular is Duffy?

Duffy is an uncommon given name for males but a very popular last name for both adults and children (#827 out of 150436, Top 1%). (2000 U.S. Demographics)


Ranking and usage % can show different trends depending on the distribution of names that year.

Duff is the only popular varying form of Duffy (not ranked). This relation of Duffy reached the height of its popularity in the 1950s (#1871). Below is a charted analysis of the popularity of Duffy and corresponding names. (Top Baby Names, 2014)

Top 2000 baby names ranking of Duff in U.S.

Top 100 baby names ranking of Duffy and related baby names outside U.S.

Similar Names


Duffy is alike in pronunciation to Daffy. Other suggested similar names are Daffyd, Dunly (see Dunley), Dusty, Jeffy and Raffy. These names tend to be more commonly used than Duffy.