Cognomen 加雲 (Galván 
, 加雲 
) , in the entire world, is quite a common surname. The cognomen 加雲 is habitual in Latin America and the Caribbean, particularly Uruguay, where it is quite a common surname, Paraguay, where it is quite a rare surname, and Panama. Measured by absolute frequency, it is commonest in Mexico, Spain, and Colombia. Very seldom, 加雲 is the forename as well as the last name.