Family name ז'קו (Jacquot 
, ז'קו 
) , worldwide, is a common cognomen. The cognomen ז'קו is characteristic of Martinique, where it is quite a common surname, France, and Luxembourg, where it is quite a rare surname. In absolute terms, it is commonest in France, the United States, and Martinique. Very seldom, ז'קו is the forename as well as the last name.