Cognomen Samouil (Самуил 
, Samouil 
) , all around the world, is quite a rare family name. The family name Samouil is characteristic of Greece, where it is quite a rare surname, Cyprus, and Bulgaria. Not in comparison with a country's population, it is the most numerous in Greece, Egypt, and Bulgaria. More prevalently, Samouil is the forename as well as the last name.