Family name 鲁西 (鲁西 
, Rousey 
) , globally, is quite a rare surname. The cognomen 鲁西 is characteristic of the United States, where it is a rare surname, New Zealand, and Canada, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in the United States, China, and Canada. Also, 鲁西 is the forename as well as the last name.