Throughout the world, Lenko (Lenko 
, Ленко 
, Ленько 
) is a rare male forename. The first name Lenko is habitual in Croatia, where it is quite a rare boy's name, Bulgaria, and Austria, where it is a rare masculine name. In absolute terms, it is the most numerous in Croatia, Bulgaria, and South Africa. More frequently, Lenko is the last name as well as the forename.