Charles Justice may refer to:

• Charles Justice (American football coach), head coach of the University of New Hampshire's football team
• Charlie Justice (halfback) (1924–2003), American football halfback
• Charlie Justice (politician) (born 1968), Democratic member of the Florida Senate

• John Duffus
• John Duffy (footballer)
• John Duffy (footballer, born 1886)
• John Duffy (footballer, born 1922)
• John Duffy (footballer, born 1929)
• John Duffy (footballer, born 1943)
• John Duffy (writer)
• John Duflon Hutchison
• John Dugan
• John Dugan (soccer)
• John Dugdale (herald)
• John Dugdale (photographer)
• John Duggan (disambiguation)
• John Dugmore of Swaffham
• John Dugmore of Swaffham (1793-1871)
• John Duke
• John Duke (disambiguation)
• John Duke (MP for Honiton)
• John, Duke of Argyll and Greenwich
• John, Duke of Brunswick-Grubenhagen
• John, Duke of Görlitz
• John, Duke of Munsterberg-Oels
• John, Duke of Münsterberg-Oels
• John, Duke of Saxe-Weimar
• John Dumelo