Throughout the world, Soiun (Soiun 
, Союн 
) is a rare male given name. The first name Soiun is characteristic of Georgia, where it is quite a rare boy's name, Romania, where it is a rare male name, and Ukraine, where it is a very rare boy's name. Measured by absolute frequency, the name is most common in Georgia, Romania, and Russia. Very seldom, Soiun is the last name as well as the forename.