Family name 宗谷 (宗谷 
, Соя 
, Соуя ) , in all the world, is quite a rare last name. The last name 宗谷 is habitual in Ukraine, where it is quite a rare surname, Armenia, where it is a rare surname, and Russia. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Ukraine, Russia, and Belarus. Very seldom, 宗谷 is the forename as well as the last name.