Surname غارث (Garth 
, غارث 
) , in the entire world, is quite a common last name. The cognomen غارث is habitual in Nicaragua, where it is quite a common surname, Jamaica, where it is quite a rare surname, and Australia. In absolute terms, it is the most numerous in the United States, Nicaragua, and Australia. More frequently, غارث is the forename as well as the last name.