Surname Кастелл (Castell 
, Кастелл 
) , all over the world, is quite a common family name. The last name Кастелл is characteristic of Spain, where it is quite a rare surname, Uruguay, and Cuba. Measured by absolute frequency, this name is the most popular in Spain, the United States, and Mexico. Very seldom, Кастелл is the forename as well as the last name.