Worldwide, Syomash (Syomash , Сиомаш ) is an extremely rare unknown gender given name. Much more frequently, Syomash is the last name as well as the forename.
Сьомаш, and Сёмаш
Konstantin, and Yekaterina
, Сиомаш 
) is an extremely rare unknown gender given name. Much more frequently, Syomash is the last name as well as the forename.