U 72
U 72 denotes:
- SM U 72 , a submarine of the Imperial Navy during World War I
- U 72 Kabel, a telephone cable commonly used in Switzerland, see Telephone cable # Switzerland
- U 72 (Kriegsmarine) , a submarine of the German Wehrmacht in World War II
- the U72 line of the Düsseldorfer Stadtbahn, see list of Düsseldorf Stadtbahnlinien