Across the world, Kreytser (Крейцер , Kreytser ) is an extremely rare unknown gender forename. Much more frequently, Kreytser is the last name as well as the forename.
Креитсер, and Креытсер
Mikhail
, Kreytser 
) is an extremely rare unknown gender forename. Much more frequently, Kreytser is the last name as well as the forename.