Cognomen סובי (Suby 
, סובי 
) , throughout the world, is a rare family name. The cognomen סובי is habitual in Sri Lanka, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Czechia. Measured by absolute frequency, it is commonest in Sri Lanka, the United States, and Indonesia. More frequently, סובי is the forename as well as the last name.