Family name สีรุ้ง (Rainbow 
, Seerung 
, Sirung 
) , globally, is quite a common cognomen. The last name สีรุ้ง is habitual in Guernsey, where it is quite a common surname, Isle of Man, where it is quite a rare surname, and Hong Kong. Measured by absolute frequency, it most frequently occurs in the United Kingdom, Indonesia, and China. Also, สีรุ้ง is the forename as well as the last name.