Last name Yalyn (Yalyn 
, Ялин 
) , in the entire world, is a rare family name. The last name Yalyn is habitual in Russia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Nicaragua. Measured by absolute frequency, it is commonest in Russia, Kazakhstan, and Ukraine. Much less frequently, Yalyn is the forename as well as the last name.