Last name Kuscer (Kuscer 
) , in the entire world, is a rare surname. The last name Kuscer is characteristic of Slovenia, where it is quite a rare surname, Croatia, where it is a rare surname, and Argentina, where it is a very rare surname. Measured by absolute frequency, the name is most common in Slovenia, Germany, and Croatia. Much less frequently, Kuscer is the forename as well as the last name.