Surname Симма (Simma 
, Cimma 
, Симма 
) , in the entire world, is a common cognomen. The cognomen Симма is characteristic of Austria, where it is quite a common surname, Laos, where it is quite a rare surname, and Thailand. Measured by absolute frequency, the name is most common in India, Austria, and Thailand. Also, Симма is the forename as well as the last name.