Last name ארנאוט (Arnaut 
, ארנאוט 
) , around the world, is quite a common family name. The last name ארנאוט is characteristic of Bosnia and Herzegovina, where it is a common surname, Moldova, where it is quite a common surname, and Serbia, where it is quite a rare surname. In absolute terms, the name is most common in Bosnia and Herzegovina, Moldova, and Brazil. Much less frequently, ארנאוט is the forename as well as the last name.