Surname Слабый (Slaby 
, Слабый 
, Slabiy ) , across the world, is quite a rare last name. The family name Слабый is habitual in Eastern Europe, particularly Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Poland. In absolute terms, it is commonest in Czechia, the United States, and Poland. Likewise, Слабый is the forename as well as the last name.