Family name Айерман (Eiermann 
, Eyerman 
, Айерман 
) , globally, is quite a rare last name. The last name Айерман is characteristic of Germany, where it is quite a rare surname, Switzerland, where it is a rare surname, and Hong Kong. In absolute terms, it is commonest in Germany, the United States, and Switzerland. Much less frequently, Айерман is the forename as well as the last name.