Other Uses
- French ship Duquesne, eight ships and one cruiser class in the French Navy named after Abraham Duquesne
- Duquesne (PRR), a Pennsylvania Railroad passenger train, later renamed the Keystone by Amtrak
- Keystone (Amtrak train), a train service known as the Duquesne prior to becoming part of Amtrak
- Duquesne Country and Athletic Club, an American professional football team from 1895 to 1900
- Pittsburgh Duquesne or Duquesne Country and Athletic Club hockey team, an American amateur, later professional, hockey team from 1895 to 1920
- Duquesne Club, a private social club in Pittsburgh, Pennsylvania, founded in 1873
- Duquesne Brewing Company (1899-1972), a brewery in Pittsburgh
- Duquesne Brewing Company, revived from the above company
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