Last name 柳西 (柳西 
, Lewsey 
) , around the globe, is a rare surname. The cognomen 柳西 is habitual in Isle of Man, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Australia. Not in comparison with a country's population, this name is the most popular in the United Kingdom, Australia, and the United States. Very seldom, 柳西 is the forename as well as the last name.