Duff

Duff may refer to:

• Duff (surname)
• Duff (given name)
• Duff (nickname)
• Karen Duffy, an actress, model, and former MTV VJ once known as "Duff"
• Duff Roman, on-air name of Canadian radio personality and executive David Mostoway (born 1938)

• Duff, Indiana, United States, an unincorporated community
• Duff, Nebraska, United States, an unincorporated community
• Duff, Tennessee, United States, an unincorporated community
• Duff, Saskatchewan, Canada, a village
• Duff Hill, a mountain in County Wicklow, Ireland
• Duff River, a river in County Sligo, Ireland
• Duff Islands, in the Solomon Islands, Pacific Ocean
• Mount Duff, Mangareva Island, French Polynesia
• Mount Duff (Yakutat), a Canadian mountain on the border between Alberta and British Columbia
• Duff Peak, Victoria Land, Antarctica
• Duff Point, Greenwich Island, Antarctica

• The DUFF (novel), by Kody Keplinger
• The DUFF, a 2015 film based on the Keplinger novel
• Duff Beer, a fictional brand of beer on The Simpsons
• Elmyra Duff, a fictional character on Tiny Toon

• Duff (dessert), a Bahamian dessert and an English term for pudding
• Duff, another name for plant litter, plant material that has fallen to the ground
• Duff, slang term for buttocks
• Duff baronets, three titles in the Baronetage of the United Kingdom
• , two British Royal Navy frigates
• Duff (1794 ship), a British merchant ship
• Duff House, Banff, Scotland
• Duff Building, Owosso, Michigan, United States, on the National Register of Historic Places
• Down Under Fan Fund
• Daf, also called duff, an Indian frame drum of Persian origin
• "up the duff", British and Australian English slang for being pregnancy.

• Duff reaction, a formylation reaction used in organic chemistry

• Duff's (disambiguation)
• DUF (disambiguation)