Duffy may refer to:
People Duffy (surname), people with the surname Duffy or Duffey Duffy (nickname) Duffy (singer) (born 1984), Welsh singer, born Aimee Ann Duffy
Places Duffy, Australian Capital Territory, a suburb of Canberra Duffy, Ohio, United States, an unincorporated community Duffy, West Virginia, United States, an unincorporated community Duffy Fairgrounds, a stadium in New York, United States Duffy's Hill, a hill in Manhattan, New York Duffy's Peak, a hill or butte in Texas, United States Duffy Peak, a mountain on Alexander Island, Antarctica
Arts and entertainment Duffy the Disney Bear, an anthropomorphic teddy bear character featured at Disney theme parks Duffy (film), a 1968 comedy starring James Coburn Duffy (novel), a 1980 novel by Julian Barnes writing as Dan Kavanagh Tristan Duffy, a fictional character in American Horror Story
Other uses USS Duffy (DE-27), a US Navy destroyer
See also Duffy antigen system, a type of cell marker proteins and the gene which codes for them Duffy site, an archaeological site in Illinois, United States Duffy Square, part of Times Square in New York City, United States Duffy & Snellgrove, an Australian book publishing company Duffey (disambiguation) Duffie, a surname Dufy, a surname O'Duffy, a surname