Cognomen 加思 (Garth 
, 加思 
) , around the world, is quite a common last name. The surname 加思 is habitual in Nicaragua, where it is quite a common surname, Jamaica, where it is quite a rare surname, and Australia. Not in comparison with a country's population, it most frequently occurs in the United States, Nicaragua, and Australia. More frequently, 加思 is the forename as well as the last name.