Family name 瑟斯 (瑟斯 
, Sirs 
, Cerce 
) , all around the world, is quite a rare last name. The family name 瑟斯 is habitual in Slovenia, where it is a rare surname, Germany, and Latvia. Measured by absolute frequency, the name is most common in Germany, the United States, and Philippines. Much less frequently, 瑟斯 is the forename as well as the last name.