Last name Tseko (Tseko 
, Цеко 
, Checo 
) , in the entire world, is quite a common family name. The family name Tseko is habitual in the Dominican Republic, where it is quite a common surname, Lesotho, and Bulgaria. Measured by absolute frequency, it is commonest in the Dominican Republic, Bulgaria, and the United States. Likewise, Tseko is the forename as well as the last name.