Cognomen Цайнер (Zainer 
, Цайнер 
) , globally, is a rare surname. The family name Цайнер is habitual in Austria, where it is a rare surname, Czechia, and Croatia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United States, Brazil, and Austria. Very seldom, Цайнер is the forename as well as the last name.