Cognomen Zalva (Zalva 
, Залва 
) , in all the world, is a rare last name. The family name Zalva is habitual in Latvia, where it is a rare surname, Indonesia, and Argentina, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Indonesia, Argentina, and the United States. Likewise, Zalva is the forename as well as the last name.