Family name Жансу (Cansu 
, Jansu 
, Жансу 
) , worldwide, is quite a common last name. The family name Жансу is characteristic of Turkey, where it is quite a rare surname, Switzerland, where it is a rare surname, and Georgia. Not in comparison with a country's population, it is the most numerous in Turkey, France, and Germany. More prevalently, Жансу is the forename as well as the last name.