German submarine U-164

U-164 may refer to one of the following German submarines:


 * SMU U-164, a Type Mittel U submarine launched in 1918; served in World War I until surrendered on 22 November 1918; broken up at Swansea in 1922
 * GS U-164 (1941), a Type IXC submarine that served in World War II until sunk on 6 January 1943