>
Surname Summa (Suma , Som , Sum ) , in the world, is a widespread last name. The cognomen Summa is habitual in British Virgin Islands, where it is quite a common surname, Hong Kong, and Malaysia (explore the name in all countries). Not in comparison with a country's population, the name is most common in India, Malaysia, and Bangladesh. More frequently, Summa is the forename as well as the last name.