Surname جانستون (Johnstone 
, Johnston , جانستون) , in the world, is a widespread family name. The family name جانستون is habitual in New Zealand, where it is a common surname, Seychelles, and Australia (explore the name in all countries). Measured by absolute frequency, it is the most numerous in the United States, the United Kingdom, and Australia. Very seldom, جانستون is the forename as well as the last name.