Cognomen 鲁索 (Rousseau 
, 鲁索 
) , throughout the world, is a common surname. The last name 鲁索 is characteristic of France, where it is quite a common surname, Seychelles, and Monaco (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in France, Canada, and the United States. Very seldom, 鲁索 is the forename as well as the last name.