Cognomen Toshin (Toshin 
, Тошин 
) , throughout the world, is a rare last name. The cognomen Toshin is habitual in Eastern Europe, particularly Bulgaria, where it is a rare surname, Belarus, where it is a very rare surname, and Russia. Not in comparison with a country's population, it is commonest in Russia, Indonesia, and Ukraine. More frequently, Toshin is the forename as well as the last name.