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Gender: F Meaning of Duff: "swarthy" Origin of Duff: Irish

Somewhat gruff name that might be better feminized as Duffy.

Famous People Named Duff

Duff Twysden (born Mary Duff Stirling), British socialite; model for Brett Ashley in Ernest Hemingway's novel "The Sun Also Rises"
Anne-Marie Duff, English actress
Hilary Erhard Duff, American actress/singer
Haylie Katherine Duff, American actress; sister of Hilary Duff

Pop Culture References for the name Duff

Duff Beer, brand of beer on TV's "The Simpsons"
"The DUFF (Designated Ugly Fat Friend)," novel by Kody Keplinger and 2015 film
Elmyra Duff, character on animated series "Tiny Toon Adventures"
Duff, slang for the buttocks