German submarine U-79

U 79 may refer to:

• SM U 79, U- boat of the German Imperial Navy in World War I
• U 79 ( Kriegsmarine ), a submarine of the German Wehrmacht in World War II
• The line U79 in the network of Düsseldorf and Duisburg Stadtbahn, in the meantime also D train, see Dusseldorf - Duisburg small train

• Disambiguation
• Abbreviation