Globally, Syanov (Syanov , Сьянов , Съянов ) is an extremely rare unknown gender first name. Much more prevalently, Syanov is the last name as well as the forename.
Сианов, Сянов, סיאנוב, and שיאנוב
Mr, Dmitry, and Hafizh
, Сьянов 
, Съянов 
) is an extremely rare unknown gender first name. Much more prevalently, Syanov is the last name as well as the forename.