Surname Kerra (Kerra 
, Carrus 
, Kjerre 
) , globally, is quite a rare last name. The surname Kerra is habitual in Italy, where it is quite a rare surname, Bahrain, where it is a rare surname, and Greece. In absolute terms, the name is most common in Italy, Kenya, and France. Likewise, Kerra is the forename as well as the last name.