Cognomen Ołeh (Олег 
, Ołeh) , all around the world, is a common last name. The family name Ołeh is characteristic of Moldova, where it is quite a common surname, Kyrgyzstan, and Belarus (explore the name in all countries). Measured by absolute frequency, it is commonest in Russia, Kyrgyzstan, and Uzbekistan. Much more frequently, Ołeh is the forename as well as the last name.