Family name Dorotheus (Дорофей 
, Доротей 
, Dorotheus 
) , all around the world, is a rare cognomen. The family name Dorotheus is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Bulgaria. In absolute terms, it most frequently occurs in Eastern Europe, particularly Ukraine, Belarus, and Russia. Likewise, Dorotheus is the forename as well as the last name.