Last name Кайхер (Kaiher 
, Кайхер 
, Kajher 
) , in all the world, is a very rare surname. The cognomen Кайхер is characteristic of Kazakhstan, where it is a rare surname, Germany, where it is an extremely rare surname, and Ukraine. Measured by absolute frequency, it most frequently occurs in Kazakhstan, Germany, and Russia. Very seldom, Кайхер is the forename as well as the last name.