Cognomen סאיגו (Takamori 
, סאיגו 
, Saigō) , in all the world, is a rare surname. The cognomen סאיגו is habitual in Singapore, where it is a rare surname, New Zealand, and Brazil. Measured by absolute frequency, it most frequently occurs in Brazil, the United States, and Japan. Likewise, סאיגו is the forename as well as the last name.